Scarecrow

Madness: once per turn pick any army in range
and roll a d20.
1: Scarecrow is sent to the graveyard
2-9: Scarecrow taps and does not untap during
your next untap step.
10-19: Tap the selected army, it does not untap
during its controller's next untap step.
20: The selected army is returned to
its controller's hand.