Gitrog, the Insatiable

Deathtouch, Devour 2
{3}{u/b}: Put an offering counter on target creature.
You may activate this ability as long as Gitrog is
in the command zone or on the battlefield.
Creatures with offering counters may be
sacrificed as a result of Gitrog's devour ability as
it enters the battlefield.
Whenever a creature is sacrificed as the result of
a devour ability you control, draw a card.