Hadronox

Hadronox
Race	Bone spider (Beast)
Level	74 Elite (Normal mode); 82 Elite (Heroic mode)
Location	Hadronox's Lair, Azjol-Nerub
Status	Killable
Azjol-Nerub
Krik'thir the Gatewatcher; Hadronox; Anub'arak	(lore); (lore); (lore)
	Loot

Hadronox is the second boss of Azjol-Nerub, an instance in the Dragonblight. When encountered, the Anub'ar are attacking him as the players enter the room. It seems like the Scourge forces here are trying to catch the huge spider and perhaps convert it to an undead to use as a weapon, similar to Maexxna in Naxxramas.

Abilities

Every time Hadronox kills a player or attacking Mob, he re-gains health.
Occasionally casts spider silk tethers, drawing all players (and attacking Mobs) to itself.
Will occasionally web a player, immobilizing them.
Leech Poison - AOE Poison Effect. Does 500-600 dmg per tick, heals back Hadronox for amount damaged. Healing done to those with poison on also heal boss as well.
Acid Cloud - Decreases armor (sunder)

Tactics

The Pull - Start by pulling the Crusher and two elites to the side. Kill them with the party near the wall. The crushers have a knock-up effect that is mitigated somewhat by the wall surface as it won't throw you very high. This starts the entire chain of events with Hadronox. Hadronox will begin coming up through the web and takes about 2–3 minutes before he gets topside. It is considerably easier for the group to take out the two non-Elites before taking down the Crusher.

After the initial Crusher is pulled, two other Crusher groups will appear where there was only one. If you want to play it safe, pull the closest to the same spot by shooting the elite closest to the party. This will prevent the other Crusher group from coming over as well. If you prefer to get it done, just pull both groups and AOE the little elites. Tanks concentrate on the Crushers.

The Boss - As the final crusher is killed, wait alongside the round platform you entered the webbing at. Have the tank stay down just a little way into the webbing. Hadronox will be killing minions along the way. Do not actually pull Hadronox, let him finish off all the adds (he will web up the doorways they spawn from then finish killing the rest — in fact there is an achievement for killing him on Heroic Mode before he does this). This fight is extremely easy if you have someone in the group that can clean poison. Hadronox's main ability is called "Leech Poison" and it will hurt those affected (large AOE area) and heal Hadronox. Any healing done to a person poisoned also heals Hadronox so de-poisoning helps. If your DPS is high, you can dps through it. Leech Poison is cast very often and lasts until nearly the next casting time. If cleansed, Hadronox doesn't get healed.

Having a shaman in your group, regardless of the role he or she is playing, is the easiest way to do this boss. Placing a [Cleansing Totem] rids the entire group of poison every 5 seconds. This effectively turns Hadronox into a tank and spank fight.

Note: [Cleansing Totem], [Cure Poison], [Cleanse], [Purify], [Abolish Poison] or [Anti-Venom] do not remove the "clouds" on the ground; you must move out of them.

Loot

Normal mode
Life-Staff of the Web Lair Item Level 163 Binds when picked up Staff Two-Hand Speed 3.60 68 – 92 Damage (22.2 damage per second) +135 Intellect +51 Stamina +27 Versatility Durability 100 / 100 Requires Level 72 Sell Price: 12 85 54 Spinneret Epaulets Item Level 163 Binds when picked up Leather Shoulder 22 Armor +18 Agility or Intellect +28 Stamina +16 Versatility Durability 85 / 85 Requires Level 72 Sell Price: 5 42 77 Treads of Aspiring Heights Item Level 163 Binds when picked up Leather Feet 576 Armor +45 Agility +68 Stamina +23 Critical Strike Durability 65 / 65 Requires Level 72 Sell Price: 4 69 87

Heroic mode
Grotto Mist Gloves Item Level 200 Binds when picked up Leather Hands 18 Armor +21 Agility or Intellect +31 Stamina +21 Versatility Prismatic Socket Socket Bonus: +2 Versatility Durability 50 / 50 Requires Level 80 Sell Price: 4 12 9 Egg Sac Robes Item Level 200 Binds when picked up Cloth Chest 780 Armor +62 Intellect +114 Stamina +62 Haste Prismatic Socket Prismatic Socket Socket Bonus: +6 Intellect Durability 135 / 135 Requires Level 80 Sell Price: 6 9 67 Hollowed Mandible Legplates Item Level 200 Binds when picked up Mail Legs 1386 Armor +62 Agility +90 Stamina +62 Critical Strike +41 Haste Prismatic Socket Prismatic Socket Socket Bonus: +6 Haste Durability 100 / 100 Requires Level 80 Sell Price: 9 11 24 Essence of Gossamer Item Level 200 Binds when picked up Unique-Equipped Trinket +111 Stamina Equip: When struck in combat has a chance of shielding you in a protective barrier which will reduce damage from each attack by 140. Lasts 10 secs. Requires Level 80 Sell Price: 8 5 7