Eretus, Nature's Vessel

: As Eretus enters the battlefield, you become Eretus. (Your life total becomes equal to his loyalty and changes as his loyalty changes.)
+1: Look at the top three cards of your library. You may reveal a creature or land card from among them and put it into your hand.
-3: You may either destroy target creature or target noncreature permanent. If you choose to destroy a creature, Scry 1.