From Beyond

“Devoid <em>(This card has no color.)</em> <br> At the beginning of your upkeep, put a 1/1 colorless Eldrazi Scion creature token onto the battlefield. It has "Sacrifice this creature: Add 1 to your mana pool." <br> 1G, Sacrifice From Beyond: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle your library.”