"cancels your debuff. but only if you don't have debuffs, otherwise you cannot use it." should be the real description. oh, and "and sometimes you cannot be targeted for 5 seconds after using it. if you're lucky..." got killed by a blow when dispa was on, and i killed some ppl when disparition was still active (and i don't even speak about the delay, there was only 1 sec remaining when i killed the opponent...) if the "now it's fixed" part is real, then the dev team has a strange feeling about how the game must be running... edit : typo
1 on 10 times it works but i heard that even crystal regeneration skill is bugged (blows from dagger bypass this).
the more skills/features ncsoft keeps adding to the game, the more delay on skill effects we have. that's a pure example of bad development of the game and an outdated game engine.
maybe it was changed, not to clear some debuffs, and clear others ? many times (after update) i was not able to clear debuffs, which prohibits to take any action. maybe now disparition clears only those debuffs which does not prohibit to take action?