Tyr, the Betrayer

When this card transforms into Tyr, the Betrayer,
or leaves the battlefield, sacrifice all creatures
you don't control and take damage equal to the
total power of creatures sacrificed this way.
{t}{r}: Gain control of all creatures with bind
counters, then remove all bind counters from
creatures you control.
If Tyr, the Betrayer dies, exile it instead, then
return it to the battlefield at the beginning of
your next upkeep.