Squee, Immortal King

Other goblin creatures get +1/+1 and have Mountainwalk.
Squee, Immortal King cannot be sacrificed.
When Squee, Immortal King leaves the battlefield, return it to the battlefield.
Squee will rule forever, unlike Alrok, Loll, Viddle,
Unkful, Blog, and Numsgil, whom Squee did in.