I'm making this suggestion because i believe it is very valid for the current scenario in which the game finds itself. The Burn debuff does not have enough damage to deal with high HP characters. There's no point in launching and buffing a bunch of heroes with the mechanic being obsolete, in addition to the 15% issue, which is another huge disadvantage... You could improve the effect, add fixed damage, something proportional to HP as well as Poison, ignore defense... Anyway, you're trying to cover the sun with a sieve the way it is...