Chaos Absolute

You can't cast this spell unless you have two or
more opponents.
You may tap permanents you don't control for
mana to cast this spell.
During each player's turn, there is an additional
combat phase after the first. During that phase,
that player gains control of any number of target creatures their opponents control until end of
turn. Those creatures gain haste until end of
turn and "this creature can't be sacrificed."