The Hell Hound

When The Hell Hound enters the battlefield,
choose target Hell and/or Demon creature in
your graveyard. Put those cards into your hand,
then put a +1/+1 counter on The Hell Hound
for each card returned to your hand this way.
"When the gates of the underworld opened, the hounds
were unleashed upon the world. Run if you can, but
they always catch their prey."
—Sable of the Shadows