Aatrox, The Darkin Blade

Lifelink
Whenever Aatrox attacks or deals combat damage, add a blood counter to it.
Aatrox receives X less damage, where X is each blood counter on it.
{t}: Remove all blood counters. Aatrox deals damage divided among any number of creatures/players for each blood counter removed. you gain life equal to the damage dealt this way.