Preeminent Captain is a rare Creature — Kithkin Soldier card from Morningtide (MOR), collector number 20. Current market price: $0.91 (foil $16.23), TCGplayer market prices via Scryfall.
First strike (This creature deals combat damage before creatures without first strike.) Whenever this creature attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking.