Baell, plague spinner.

Sacrifice a creature: put 2 -1,-1 counter on target creature that share a creature type with the sacrificed creature.
If a creature is put into a graveyard with a -1,-1 counter that shares a creature type with a creature with a -1,-1 . Draw card and put a -1,-1 counter on target creature.
"I synthesize death to nation's "Baell, plague spinner