Benthic Anomaly is a rare Creature — Eldrazi Serpent card from Modern Horizons 3 Commander (M3C), collector number 46. Current market price: $1.36, TCGplayer market prices via Scryfall.
Devoid (This card has no color.) When you cast this spell, for each opponent, choose a creature that player controls. Create a token that's a copy of one of those creatures, except its power is equal to the total power of those creatures, its toughness is equal to the total toughness of those creatures, and it's a colorless Eldrazi creature.