The Brood's Brute

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
{b}{g}{u}: Put the top two cards of your library into your graveyard. The Brood's Brute gains your choice of deathtouch, flying, or trample until end of turn.
Morph {3}{b}{g}{u} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.}