From Beyond
{3}{G}
Enchantment
Devoid (~this~ has no color.)
At the beginning of your upkeep, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice ~this~: Add {C}."
{1}{G}, Sacrifice ~this~: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle.