Henry Kin Avenger

When every commander for this deck is on the battlefield Henry Kin Avenger gains a +1/+1 counter.
Whenever a Drow enters the battlefield under your control, Henry Kin Avenger gains+1/+1 until end of turn then he fights target creature an opponent controls.
{1}{w}{w}: Henry Kin Avenger gains +3/+0 and deathtouch until end of turn. Any creature killed that turn is exiled instead.