Demonlord Belzenlok

Flying, trample

When Demonlord Belzenlok enters, exile cards
from the top of your library until you exile a nonland card, then put that card into your hand.
If the card's mana value is 4 or greater, repeat this process. Demonlord Belzenlok deals 1 damage to
you for each card put into your hand this way.