This spell is the effect of an Enchanter AA ability. When struck, the Enchanter's buff has a chance of recoiling on the attacker with Bedazzlement Effect, which attempts to mez the attacker. (Is this chance of response 100%?)
To answer the first post, this is here, even though its an AA, because all AA's that use spells are spells. Why it showed up as a level 70 Chanter spell, I'm not sure, guessing its a bug in this site.
