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'''Weapon skill''' represents your proficiency with a particular [[weapon]]. The basic formula for your maximum weapon skill at a particular level is (5 * level). Each attack which is not evaded has a chance to increase weapon skill, with low weapon skill, the skill gain rate is at or near 100%, however the skill gain change begins to sharply decrease once the weapon skill cap is approached. At 10% away from the cap, the skill gain chance is roughly 50%, and gaining the final skill point can take hundreds of swings. The chance per swing seems to be unrelated to [[weapon speed]], making low spead weapons better. Instant attacks like Sinister Strike and Hamstring help to increase your weapon skill faster. Note that attacking Evading enemies will not increase your weapon skill.
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'''Weapon skill''' represents your proficiency with a particular [[weapon]]. The basic formula for your maximum weapon skill at a particular level is (5 * level). The rate at which you gain them depends on your [[weapon speed]]. It is typically better to use a fast weapon to train up your skills. Instant attacks like Sinister Strike and Hamstring help to increase your weapon skill faster. Note that attacking Evading enemies will not increase your weapon skill.
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It has been confirmed that [[intellect]] increases the rate at which weapon skills are learned. Before [[Patch 2.0]], this was listed in the tooltip but was removed shortly after that. If you want to level a weapon skill, try asking for an [[intellect]] buff or using a scroll which can help the process.
   
It has been confirmed that [[intellect]] increases the rate at which weapon skills are learned. Before [[Patch 2.0]], this was listed in the tooltip but was removed shortly after that. If you want to level a weapon skill, try asking for an [[intellect]] buff or using a scroll which can help the process. Similarly, equip any gear you have that has an Intellect bonus on it—if you're a paladin, put on your Holy gear and cast Blessing of Kings; if you're a shaman, put on your Elemental or Restoration gear.
 
   
 
In [[Patch 2.3]], stats on melee weapons which granted an increase to weapon skill were replaced by an increase to [[expertise]] rating. Items which granted ranged weapon skill increases instead now grant increases to hit or critical strike rating.
 
In [[Patch 2.3]], stats on melee weapons which granted an increase to weapon skill were replaced by an increase to [[expertise]] rating. Items which granted ranged weapon skill increases instead now grant increases to hit or critical strike rating.
   
In ''[[Cataclysm]]'' weapon skill is removed as all weapon proficiencies available to the classes are learned from the start at full skill.
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== Effects of Weapon Skill ==
   
== Effects of weapon skill ==
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=== Player attacking a Mob ===
=== Player attacking a mob ===
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==== If your weapon skill is LESS THAN OR EQUAL TO the mob's Defense skill (the mob's level * 5) ====
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==== If your weapon skill is LESS THAN OR EQUAL TO the mob's Defense skill (the mob's level * 5): ====
   
 
* The base chance for your attack to '''miss''' the mob:
 
* The base chance for your attack to '''miss''' the mob:
 
** If the difference between the mob's Defense Skill and your Weapon Skill is '''less than or equal to 10''' then the formula for calculating your base miss chance against that mob is: '''5% + (Defense Skill - Weapon Skill)*.1%'''
 
** If the difference between the mob's Defense Skill and your Weapon Skill is '''less than or equal to 10''' then the formula for calculating your base miss chance against that mob is: '''5% + (Defense Skill - Weapon Skill)*.1%'''
 
** If the difference between the mob's Defense Skill and your Weapon Skill is '''greater than 10''', then the formula for calculating your base miss chance against that mob is: '''6% + (Defense Skill - Weapon Skill - 10)*.4%'''
 
** If the difference between the mob's Defense Skill and your Weapon Skill is '''greater than 10''', then the formula for calculating your base miss chance against that mob is: '''6% + (Defense Skill - Weapon Skill - 10)*.4%'''
 
* The base chance for your attack to be a '''critical strike''' is: '''5% - (Defense Skill - Weapon Skill)*0.04%'''
 
   
 
* The base chance for your attack to be '''dodged''' by the mob is: '''5% + (Defense Skill - Weapon Skill)*.1%'''
 
* The base chance for your attack to be '''dodged''' by the mob is: '''5% + (Defense Skill - Weapon Skill)*.1%'''
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Prior to 3.0, the base miss chance when your target's defense was 11+ points higher than your weapon skill was 1% higher. Back then, there was a huge jump in miss rate reduction by going from, say, 349 to 350 Weapon Skill. This was the point where you switched from one formula to the other, and so this particular single point of Weapon Skill was worth a dramatic +1.4% hit against a Level 73 mob/boss.
 
Prior to 3.0, the base miss chance when your target's defense was 11+ points higher than your weapon skill was 1% higher. Back then, there was a huge jump in miss rate reduction by going from, say, 349 to 350 Weapon Skill. This was the point where you switched from one formula to the other, and so this particular single point of Weapon Skill was worth a dramatic +1.4% hit against a Level 73 mob/boss.
   
==== If your weapon skill EXCEEDS the mob's Defense skill, i.e. if the mob is lower level than you are ====
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==== If your weapon skill EXCEEDS the mob's Defense skill, i.e. if the mob is lower level than you are: ====
   
* The base chance for your attack to miss the mob is 5% - (Weapon Skill - Defense Skill) * 0.04%.
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For '''each point''' that your weapon skill '''exceeds''' your opponent's [[defense]], you gain the following:
* The base chance for your attack to be a critical strike is 5% + (Weapon Skill - Defense Skill) * 0.04%.
 
* The base chance for your attack to be dodged by the mob is 5% - (Weapon Skill - Defense Skill) * 0.04%.
 
* The base chance for your attack to be parried by the mob is 5% - (Weapon Skill - Defense Skill) * 0.04%.
 
* The base chance for your attack to be blocked by the mob is 5% - (Weapon Skill - Defense Skill) * 0.04%.
 
   
I.e., for '''each point''' that your weapon skill exceeds your opponent's [[defense]], your chance to miss, be dodged, be parried, and be blocked decreases by 0.04%, and your chance to crit increases by 0.04%. Effectively, you can consider weapon skill to be the inverse of the [[defense]] skill.
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* Your chance to miss decreases by 0.04%.
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* Your chance to score a [[critical strike]] increases by 0.04%.
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* Your opponent's chance to [[Formulas:Block|block]] your attack decreases by 0.04%.
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* Your opponent's chance to [[Formulas:Parry|parry]] your attack decreases by 0.04%.
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* Your opponent's chance to [[Formulas:Dodge|dodge]] your attack decreases by 0.04%.
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Effectively, you can consider weapon skill to be the inverse of the [[defense]] skill.
   
 
=== Glancing Blows ===
 
=== Glancing Blows ===
   
Against [[mob]]s with defense roughly equal to or higher than your [[Attack Rating]] (i.e. your weapon skill), you will have a chance to land a [[glancing blow]] instead of a normal hit. A glancing blow only occurs on white melee damage, cannot crit, and does less damage than a normal blow. If the attacker's weapon skill is ''less'' than his level * 5, the damage reduction will be proportional to the difference between the attacker's weapon skill and the target's defense.
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Against [[mobs]] with defense roughly equal to or higher than your [[Attack Rating]] (i.e. your weapon skill), you will have a chance to land a [[Glancing blow]] instead of a normal hit. A glancing blow only occurs on white melee damage, cannot crit, and does less damage than a normal blow. If the attacker's weapon skill is ''less'' than his level * 5, the damage reduction will be proportional to the difference between the attacker's weapon skill and the target's defense.
   
 
Back before patch 2.0, when Weapon Skill could be raised ''above'' your level * 5 from gear or racial bonuses, the damage reduction when a glancing blow occurred was reduced somewhat for each point of additional Weapon Skill. This is no longer the case.
 
Back before patch 2.0, when Weapon Skill could be raised ''above'' your level * 5 from gear or racial bonuses, the damage reduction when a glancing blow occurred was reduced somewhat for each point of additional Weapon Skill. This is no longer the case.
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* Its chance to miss you is 5%.
 
* Its chance to miss you is 5%.
 
* Its chance to score a [[critical strike]] against you is 5%.
 
* Its chance to score a [[critical strike]] against you is 5%.
* Your chance to [[block]] the attack is 5%.
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* Your chance to [[Formulas:Block|block]] the attack is 5%.
* Your chance to [[parry]] the attack is 5%.
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* Your chance to [[Formulas:Parry|parry]] the attack is 5%.
* Your chance to [[dodge]] the attack depends on your Agility.
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* Your chance to [[Formulas:Dodge|dodge]] the attack depends on your Agility.
   
 
For each point that the mob's weapon skill (its level * 5) exceeds your [[defense]], it gains the following:
 
For each point that the mob's weapon skill (its level * 5) exceeds your [[defense]], it gains the following:
   
 
* Its chance to miss decreases by 0.04%.
 
* Its chance to miss decreases by 0.04%.
* Its chance to score a critical strike increases by 0.04%.
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* Its chance to score a [[critical strike]] increases by 0.04%.
* Your chance to block the attack decreases by 0.04%.
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* Your chance to [[Formulas:Block|block]] the attack decreases by 0.04%.
* Your chance to parry the attack decreases by 0.04%.
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* Your chance to [[Formulas:Parry|parry]] the attack decreases by 0.04%.
* Your chance to dodge the attack decreases by 0.04%.
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* Your chance to [[Formulas:Dodge|dodge]] the attack decreases by 0.04%.
   
 
For each point that the mob's weapon skill (its level * 5) is less than your [[defense]]:
 
For each point that the mob's weapon skill (its level * 5) is less than your [[defense]]:
   
* Its chance to miss increases by 0.04%.
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* Its chance to miss decreases by 0.04%.
* Its chance to score a critical strike decreases by 0.04%.
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* Its chance to score a [[critical strike]] increases by 0.04%.
* Your chance to block the attack increases by 0.04%.
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* Your chance to [[Formulas:Block|block]] the attack decreases by 0.04%.
* Your chance to parry the attack increases by 0.04%.
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* Your chance to [[Formulas:Parry|parry]] the attack decreases by 0.04%.
* Your chance to dodge the attack increases by 0.04%.
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* Your chance to [[Formulas:Dodge|dodge]] the attack decreases by 0.04%.
 
=== Crushing Blows ===
 
 
If a mob's weapon skill (its level * 5) is at least '''20 points higher''' than the target's level-capped [[defense]] (the target's Defense skill capped at its level * 5), there is a chance the target will receive a [[Crushing Blow]].
 
 
=== Dazed ===
 
 
If a mob hits a target from behind, and the target takes damage from the hit that isn't [[Absorb]]ed, there is a chance the player will be [[Dazed]]. The base chance for a level 30+ target to be dazed when hit from behind, if the mob's weapon skill is equal to the target's defense skill, is ''20%''. This chance can get as low as 0% if the target's defense is high enough, or as high as 40% if the target's defense is low enough. If the target is below level 30, it's base chance to be dazed is less; a level 10 target with fully trained defense skill only has a 7% chance to be dazed when attacked from behind by a level 10 mob.
 
 
Note that your defense skill is NOT level-capped for purposes of determining your chance to be dazed. It is possible to become undazeable while wearing tank plate gear.
 
   
 
=== Player attacking a Player ===
 
=== Player attacking a Player ===
   
Weapon skills are maxed in PvP combat. This means leveling a weapon skill for pvp is unimportant; when attacking an enemy player, your Weapon Skill will always be considered to be your level * 5, and your target's Defense will always be treated as their level * 5 (before any Defense Rating from your target's gear is added in).
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Weapon skills are maxed in PvP combat. This means leveling a weapon skill for pvp is unimportant; when attacking an enemy player, your Weapon Skill will always be considered to be your level * 5, and your target's Defense will always be treated as his level * 5 (before any Defense Rating from your target's gear is added in).
 
Weapon skill does not affect your chance to hit other players in the battlegrounds or in the arena, but it still affects your hit chance against enemy players in world PvP or duels.
 
   
 
== Increasing your weapon skill (at level 70+) ==
 
== Increasing your weapon skill (at level 70+) ==
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For ranged DPS (bows/guns) - [[Dr. Boom]] used to be an excellent choice - just bring enough ammo, and attack at will. Hunters had the best options with him due to auto-shoot. '''This no longer works as of 3.2.''' Likewise, the unkillable Servants in the Blasted Lands no longer skill you up when they are in their unkillable state.
 
For ranged DPS (bows/guns) - [[Dr. Boom]] used to be an excellent choice - just bring enough ammo, and attack at will. Hunters had the best options with him due to auto-shoot. '''This no longer works as of 3.2.''' Likewise, the unkillable Servants in the Blasted Lands no longer skill you up when they are in their unkillable state.
 
Vendors in Dalaran sell white, low DPS weapons with extremely low attack speeds, making them great options for levelling weapon skill.
 
 
If you have a relatively good health pool, you can skill up from the waves of creates inside the [[Violet Hold]]:
 
* Get some health restoring effects ([[Elixir_of_Mighty_Fortitude|here]], [[Swift_Hand_of_Justice|here]], [[Essence_Infused_Mushroom|here]], or [[Medallion_of_Heroism|here]], for example)
 
* Set the [[Dungeon_difficulty|difficulty]] to Normal.
 
* Zone in and do ''not'' start the event.
 
* Skill up by attacking the level 75 elite creatures, avoiding any which do too much damage for you to survive (this is not a problem at higher levels).
 
* You can pick a portal and stand near it to fight everything emerging from it. If you get overwhelmed, retreat to the friendly NPCs by the doorway (or stay there the whole time). If you get into too much trouble, run out!
 
   
 
== Historical effects of weapon skill ==
 
== Historical effects of weapon skill ==
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The effect of weapon skill has changed several times over the game's history. Prior to patch 2.0, some items granted extra Weapon Skill directly, making it possible to have a weapon skill in excess of your level * 5. Back then, the formula shown above for your weapon skill exceeding your opponent's defense also applied in the reverse situation, i.e. when your weapon skill was less than your opponent's defense.
 
The effect of weapon skill has changed several times over the game's history. Prior to patch 2.0, some items granted extra Weapon Skill directly, making it possible to have a weapon skill in excess of your level * 5. Back then, the formula shown above for your weapon skill exceeding your opponent's defense also applied in the reverse situation, i.e. when your weapon skill was less than your opponent's defense.
   
After the Burning Crusade went live, but prior to patch 2.1, CM [[Crezax]] made a post [http://forums.wow-europe.com/thread.html?topicId=166546791&pageNo=1&sid=1#2] on the EU forums outlining the effect of weapon skill on higher-level mobs. Note that this refers only to monsters 3 levels higher than the player in PVE (i.e. boss level mobs). Corresponding numbers for 1 and 2 levels higher than the player are not known, but are likely lower.
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After the Burning Crusade went live, but prior to patch 2.1, CM [[Crezax]] made a post[http://forums.wow-europe.com/thread.html?topicId=166546791&pageNo=1&sid=1#2] on the EU forums outlining the effect of weapon skill on higher-level mobs. Note that this refers only to monsters 3 levels higher than the player in PVE (i.e. boss level mobs). Corresponding numbers for 1 and 2 levels higher than the player are not known, but are likely lower.
   
 
<pre>Let's say you increase your weapon skill by 4.
 
<pre>Let's say you increase your weapon skill by 4.
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Presumably this was only for Weapon Skill over your level's natural cap (Level * 5), a state of affairs which no longer exists as of patch 2.3. It was not known if you also got the additional 0.04% crit chance per additional +skill.
 
Presumably this was only for Weapon Skill over your level's natural cap (Level * 5), a state of affairs which no longer exists as of patch 2.3. It was not known if you also got the additional 0.04% crit chance per additional +skill.
   
Since items with Weapon Skill or Weapon Skill Rating used to reduce your chance to miss, to be dodged, to be parried, and to be blocked, they could increase your "crit cap" as described in the [[Critical strike]] article.
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=== Crit Cap ===
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White-damage attacks made by a player with fully-trained weapon skill against a mob 3 levels higher have a fixed 24% chance of being glancing blows.
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Therefore, with no +expertise/+hit gear on, and no talents or racial abilities that increase Expertise or the chance to hit, attacks made by a level 80 [[dual wield]]er against a level 83 mob have the following [[Attack table|table]] from the front:
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{| class="darktable"
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|-----
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! Result
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! Chance
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|-----
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| Miss || ALIGN="RIGHT" | 28.0%
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|-----
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| Dodge || ALIGN="RIGHT" | 6.5%
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|-----
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| Parry || ALIGN="RIGHT" | At least 10%
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|-----
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| Glancing Blow || ALIGN="RIGHT" | 24.0%
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|-----
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| Block || ALIGN="RIGHT" | 6.5%
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|-----
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| Combined hit + crit || ALIGN="RIGHT" | At most 24%
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|}
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Attacks against mobs made from the back cannot be blocked or parried (thus, attacking from behind will never trigger "parry haste" on the mob). Losing those values from the chart makes the "combined hit + crit" entry appropriately larger.
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''Players'' cannot dodge, parry, or block attacks from the back.
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It is not as bad if the same character attacks the same mob from the front with a two-handed weapon:
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{| class="darktable"
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|-----
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! Result
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! Chance
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|-----
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| Miss || ALIGN="RIGHT" | 9%
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|-----
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| Dodge || ALIGN="RIGHT" | 6.5%
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|-----
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| Parry || ALIGN="RIGHT" | At least 10%
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|-----
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| Glancing Blow || ALIGN="RIGHT" | 24.0%
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|-----
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| Block || ALIGN="RIGHT" | 6.5%
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|-----
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| Combined hit + crit || ALIGN="RIGHT" | At most 43%
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|}
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This is a 43% + your +hit crit cap.
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All these crit caps could have been increased by increasing your Expertise (0.5% increase per point from the front) and by +hit (1% increase per percantage increase in your Hit chance).
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Dual wield full raid buffs example from the front:
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+0 hit +50% crit: 6.5% dodge, 10% parry, 28.0% miss, 6.5% block, 25% glancing blow, 24% crit
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= 26% of your crit rate did nothing
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+6% hit +40% crit: 6.5% dodge, 10% parry, 6.5% block, 22.0% miss, 25% glancing blow, 30% crit
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= 10% of your crit rate did nothing
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+15% hit +31% crit: 6.5% dodge, 10% parry, 6.5% block, 13% miss, 25% glancing blow, 31% crit, 8% hit
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= no +crit was wasted in this example
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Dual wield full raid buffs example from the back:
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+0 hit +50% crit: 6.5% dodge, 28.0% miss, 25% glancing blow, 40.5% crit
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= 9.5% of your crit rate did nothing
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+6% hit +40% crit: 6.5% dodge, 22.0% miss, 25% glancing blow, 40% crit, 6.5% hit
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= no +crit was wasted in this example
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+15% hit +33% crit: 6.5% dodge, 13% miss, 25% glancing blow, 33.0% crit, 22.5% hit
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= no +crit was wasted in this example
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==== DPS Implications ====
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Hit Rating is very important due to the crit cap. The following shows the difference in white damage between various stat options:
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Assuming 30% crit and +0% hit from the front, its
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6.5% block for say 80% damage (depends on a lot of things)
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24% crit for 200% damage (impale doesn't work on white-damage attacks!)
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25% glancing blow for 70% damage
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44.5% miss, dodge, or parry for no damage
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per swing its an average of .065 * .8 + .24 *2 + .25 * .7
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= '''70.7%''' of your damage per swing
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Assuming you add +5% hit, the numbers become...
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6.5% block for say 80% damage
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29% crit for 200% damage
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25% glancing blow for 70% damage
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39.5% miss, dodge, or parry no damage
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so per swing its an average of .065 * .8 + .29 *2 + .25 * .7
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= '''80.7%''' of your damage per swing
   
 
== Historical: Increasing your weapon skill beyond (level * 5) ==
 
== Historical: Increasing your weapon skill beyond (level * 5) ==
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*[[Trolls]]: +5 bow skill, +5 throwing weapon skill
 
*[[Trolls]]: +5 bow skill, +5 throwing weapon skill
   
== Patch changes ==
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== Patch Changes ==
*{{Patch 4.0.1|note=
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:;From [[blue post]]:
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*[[Patch 2.0.1]]: Weapon Skill now does the following: Weapon skill will no longer reduce the percentage damage lost due to glancing. The player will gain 0.1% to their critical strike rating per weapon skill against monsters above their level.
{{bluepost
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*[[Patch 2.3.0]]:Weapon Skill: All items and abilities that granted weapon skill have been changed. In most cases, they were converted to expertise or expertise rating. Ranged attacks do not benefit from expertise, so ranged weapon skill has generally been replaced by critical strike bonuses or hit bonuses. In a few cases, talents have been changed to other effects to avoid granting players excessive amounts of expertise.
|poster=Ancilorn
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*[[Patch 2.4.0]]:Weapon Skill: Points will be gained faster in weapon skills for levels 1 through 59.
|title=Cataclysm - Stat Changes
 
|body='''<span style="color:white;">Planned Stat and System Changes</span>'''<br/>...<br/>'''<span style="color:white;">Weapon Skill</span>''' - This stat will be removed from the game completely. Classes will start with all the weapon skills they need to know and will not need to improve them.
 
<br/>...
 
|link=http://blue.mmo-champion.com/topic/82/cataclysm-stat-changes
 
}}
 
}}
 
*{{patch 3.0.8|note=You can no longer skill up weapons on mobs that are immune to damage.}}
 
*{{Patch 2.4.0|note=Points will be gained faster in weapon skills for levels 1 through 59.}}
 
*{{Patch 2.3.0|note=All items and abilities that granted weapon skill have been changed. In most cases, they were converted to expertise or expertise rating. Ranged attacks do not benefit from expertise, so ranged weapon skill has generally been replaced by critical strike bonuses or hit bonuses. In a few cases, talents have been changed to other effects to avoid granting players excessive amounts of expertise.}}
 
*{{Patch 2.0.1|note=Weapon skill will no longer reduce the percentage damage lost due to glancing. The player will gain 0.1% to their critical strike rating per weapon skill against monsters above their level.}}
 
*{{Patch 1.4.0|note=Fixed a bug where weapon skills were inappropriately capped at 5 times level. Characters should now gain benefit from weapon skill bonuses beyond their normal cap.}}
 
*{{Patch 1.3.0|note=Skill-up rate improved for bows, crossbows, guns, thrown, and wands.}}
 
   
 
==See also==
 
==See also==
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==External links==
 
==External links==
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*[http://www.worldofwarcraft.com/info/underdev/implemented/2p01.html 2.0.1 Patch Notes]
 
*[http://forums.wow-europe.com/thread.html?topicId=14381707&sid=1 Zoroaster's Crit, Hit, Weapon Skill and damage formulas]
 
*[http://forums.wow-europe.com/thread.html?topicId=14381707&sid=1 Zoroaster's Crit, Hit, Weapon Skill and damage formulas]
 
*[http://elitistjerks.com/f31/t16940-roguecraft_101_a/ ElitistJerks' Roguecraft 101] (contains mention of base Dodge chance of bosses)
 
*[http://elitistjerks.com/f31/t16940-roguecraft_101_a/ ElitistJerks' Roguecraft 101] (contains mention of base Dodge chance of bosses)
 
[[Category:Combat]]
 
[[Category:Combat]]
 
[[Category:Formulas and game mechanics]]
 
[[Category:Formulas and game mechanics]]
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[[Category:Outdated articles]]
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