Dave

When Dave enters the battlefield, draw 2
cards.
{x}{x}{r}{r}{r}{t}, Put X +1/+1 Counters on Dave.
Whenever a +1/+1 counter is put on Dave, reveal the top card of your deck. If it is a Dino, Wyvern, or Bird creature, put it into your hand, otherwise, put it on the bottom of your library