Karl Marx, Communist Patriarch

Whenever you would draw a card, reveal the top card of your library. An opponent may choose to exile that card. If the card is exiled, Karl Marx deals damage to any target equal to half the exiled card's CMC rounded up. If the card is not exiled, put it into your hand.
When Karl Marx deals damage to a creature, you gain control of it until end of turn. Untap it, and it gains haste until end of turn.