Coram, the Undertaker is a mythic Legendary Creature — Human Warrior card from Modern Horizons 3 Commander (M3C), collector number 7. Current market price: $0.31 (foil $0.30), TCGplayer market prices via Scryfall.
Coram gets +X/+0, where X is the greatest power among creature cards in all graveyards. Whenever Coram attacks, each player mills a card. During each of your turns, you may play a land and cast a spell from among cards in graveyards that were put there from libraries this turn.