Boruk, Beastly Mentor

Whenever a creature with power 4 or greater enters, Boruk gets +2/+2 until end of turn. If this ability resolves more than once, he also gains Trample until end of turn.
Whenever a creature with power 4 or greater enters, choose one:
•Add {u}{u}, {r}{r} or {g}{g}
•Put a +1/+1 Counter on Target Creature.
•Draw a Card, then Discard a Card
Whenever Boruk, Beastly Mentor deals combat damage to a player, Search your Library for a Creature with power 6 or less, and put it onto the Battlefie