Gatekeeper Hellhound

Petrify 2 (Whenever this creature deals damage to a creature, put two time counters on that creature. For as
long as it has time counters on it, it can't attack or
block and has "At the beginning of your upkeep,
remove a time counter from this creature.")
{r}, Sacrifice Gatekeeper Hellhound: Gatekeeper Hellhound deals 2 damage to any target.