Marneus Calgar is a mythic Legendary Creature — Astartes Warrior card from Warhammer 40,000 Commander (40K), collector number 8. Current market price: — (foil $82.23), TCGplayer market prices via Scryfall.
Double strike Master Tactician — Whenever one or more tokens you control enter, draw a card. Chapter Master — {6}: Create two 2/2 white Astartes Warrior creature tokens with vigilance.