Voracitos, Avatar of Gluttony

Rank IV - Master
This card retains the abilities of its previous form.
Force Plague {b}{b}{b} (Place three -1/-1 counters on
a Being or Creature card, then tap it permanently.
Place a -1/-1 counter on the tapped card each turn.)
Gluttony of Darkness (When this card destroys a
Being card, you may place a +1/+1 counter on this
card -or- gain an ability from the card.)