Mad Jack

{2}{t}: Untap a creature with base power 4 or less
and you may use any abilities it has until end of
turn (spend mana of any color to use its abilities).
Research—{4}{t}: Look at the top six cards of your library. Put two in your hand and the rest back
on top in a random order.
Surgery—{w}{b}: A creature that just went to the graveyard is returned to play with a -2/-1 counter
on it.