Rethheart, the Lone Savage

First strike, haste
Bloodthirst 2 (If an opponent was dealt damage
this turn, this permanent enters the battlefield with
2 +1/+1 counters on it.)
{r}{g}: Look at the top three cards of your library, reveal a creature card from among them and put
it into your hand and the rest on the bottom of
your library in any order.