Aspiring Champion is a rare Creature — Astartes Warrior card from Warhammer 40,000 Commander (40K), collector number 71. Current market price: $0.54, TCGplayer market prices via Scryfall.
Menace Ruinous Ascension — When this creature deals combat damage to a player, sacrifice it. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield, then shuffle the rest into your library. If that creature is a Demon, it deals damage equal to its power to each opponent.