Delete exhaust

there's no need for this spell now that supports AND ADCs are both the most broken classes in the game.

also:

http://lolbuilder.net/news/do-you-really-need-a-tank

your chance to win without an ADC is very low compared to average and you have a higher chance to win when you don't have an assassin on your team, the class that counters ADCs. that's how overpowered exhaust is.