Necrosphinx

Menace, Trample, Wither

Sphinx of Usekph - If this Creature destroys an
Opponents Creature, place a -1/-1 counter on each
other Creature that player controls.

When this Creature dies or is Exiled, you can
remove any amount of -1/-1 counters from
Creatures your Opponents control, and gain that
much life.