Excessive Trap

Excessive Trap comes into play face down, it can
be turned up at any time for its Activate cost.
Activate {4}
When this is activated, it deals 1 damage to each
attacking creature, flip a coin for each one left.
Each that comes up tails, becomes tapped and
does not untap during its controllers untap step
for as long as this card remains on the battlefield.
From each creature with a heads up, randomly
select one and its owner sacrifices it.
{4}: Return Excessive Trap to its owner's hand.