? Block

When you play ? Block, put it face-down on
the battlefield under the control of an opponent.
Tell them it is a ? block with a helpful gift, but
that it will disappear at the end of their next turn.
If they tap it or attempt to turn it face-up, turn it
face-up. They draw a card, then put
? Block under your control and sacrifice it.
If the opponent does not tap or attempt to turn
? Block face-up by the end of their next turn,
turn ? Block face-up. That opponent gets a troll counter, then destroy ?