Dav, King of Knights

First Strike,
Nomadic (this card can't be exiled)
Bushido 3 (Whenever this creature blocks or becomes blocked, it gets +3/+3 until end of turn.)
When Dav, King of Knights enters the battlefield create a 2/1 Knight with Nomadic
{w}{u}{b}{r} Return Dav, King of Knights to your
hand.