Bringer of Darkness

Put a -1/-1 counter on each nonblack creature.
You gain life equal to the number of creatures that
had a -1/-1 counter placed on them this way.

Recover {3}{b}(When a creature is put into your graveyard from the battlefield, you may pay {3}{b}. If you do, return this card from your graveyard
to your hand. Otherwise, exile this card).

"From the shadows, I bring forth the end of light and
life"