Your Own Worst Enemies

When you set this scheme into motion, goad each creature your opponents control. Until your next
turn, those players do not have teams. (Those
players treat each other as thought they were
opponents. They take their turns separately, and can
attack each other, but cannot block for each other.
Until your next turn, those creatures attack each
combat if able and attack a player other than you if
able.)
"Mankind is humanity's greatest enemy."