Steal a Fatty

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.

When this artifact enters, put a -1/-1 counter on target creature. , : Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

( can be paid with either or 2 life.) Target creature gets -5/-5 until end of turn.