Hmm, I may be wrong about the nomana flag. It may flag itself but not cause the usable flag to be false when there is not enough mana to use it. I'm going to play with it and find out, but just a heads up.
Alshain 23:35, 4 January 2007 (EST)
This doesnt seem to work if you have never opened your spell book, or never cast anything. On my druid, If I am flying and I log in, checking for flight form right away returns nil until i cast it