Gravelord of the Catacombs

Menace
Whenever another nontoken creature dies, put a
+1/+1 counter on Gravelord of the Catacombs
and you lose 1 life.
Whenever Gravelord of the Catacombs leaves
the battlefield, each opponent loses life equal to
its power, then create X 1/1 black skeleton
creature tokens, where X is Gravelord of the
Catacombs' power.