Groggy, Goblin Warleader

Whenever you cast a Goblin creature spell, create a 1/1 red Goblin creature token.
Sacrifice any number of Goblins: Grogg, Goblin Warleader deals damage equal to the sacrificed Goblins' total power to any target.
{r}{t}: Sacrifice a Goblin creature. If you do, target Goblin creature gets +2/+2 and gains haste until end of turn.