Grunkle, Goblin King

When Grunkle, Goblin King enters the battlefield, search your library for a Goblin card, reveal it, and put it into your hand. Then shuffle your library.
Other Goblin creatures you control get +1/+1
and have "{r/g}{r/g}: This creature gains haste and hexproof until end of turn."
{r/g}{r/g}, Sacrifice another Goblin: Grunkle gains haste and hexproof until end of turn.