Emrakul's Messenger is a uncommon Creature — Eldrazi Faerie Rogue card from Modern Horizons 3 (MH3), collector number 61. Current market price: $0.35 (foil $0.74), TCGplayer market prices via Scryfall.
Devoid (This card has no color.) Flying Whenever you draw your second card each turn, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this token: Add {C}."