Abaddon the Despoiler is a mythic Legendary Creature — Astartes Warrior card from Warhammer 40,000 Commander (40K), collector number 2. Current market price: — (foil $11.23), TCGplayer market prices via Scryfall.
Trample Mark of Chaos Ascendant — During your turn, spells you cast from your hand with mana value X or less have cascade, where X is the total amount of life your opponents have lost this turn.