Tyrus, Evil Spirit

Flash
Eminence — You control each possessed creature.
When Tyrus, Evil Spirit enters the battlefield
you may put x possession counters split between
any number of creatures, where x is the amount
of mana was spent to cast this spell. Then, if you
did, sacrifice Tyrus, Evil Spirit. (If the number of possession counters on a creature is greater than its
CMC, it's possessed.)