The team with Draven wins 80% of the time.

Meh. I wish they had just given Draven his SR ult. The fact that his axes are massive AD scaling makes him near impossible to take down with Bloodthirster if they have him surrounded in units and difficult to apply grievous wounds to, and even then the lifesteal is only the problem 50% of the time. The other 50% of the time, it's just how much sheer damage he puts out.