Sephiroth, Planet's Heir

When this creature enters, creatures your opponents control get -2/-2 until end of turn.

Whenever a creature an opponent controls dies, that player loses 2 life.

Whenever a nontoken creature an opponent controls dies, put a +1/+1 counter on each creature you control.

When this creature enters, creatures your opponents control get -4/-0 until end of turn.

Menace (This creature can't be blocked except by two or more creatures.)

When this creature enters, target creature an opponent controls gets -2/-2 until end of turn and target creature you control gets +2/+2 until end of turn.

Vigilance (Attacking doesn't cause this creature to tap.)

When Donatello enters, tap up to three target creatures your opponents control. Put a stun counter on each of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)

When this creature enters, target creature an opponent controls gets -X/-X until end of turn, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)