Light of Emrakul

When you cast a Eldrazi spell, you may pay {3}{c}: Eldrazi creatures you control have +1/+1, indestructeble and Protection from every color until end of turn.

{1}{c}{c}: Create Three Eldari Spawn Tokens.

Legendary Eldrazi creatures you control have +3/+3, hexproof and "this card cannot be exiled.