Solemn Recruit is a rare Creature — Dwarf Warrior card from Aether Revolt Promos (PAER), collector number 22s. Current market price: — (foil $0.30), TCGplayer market prices via Scryfall.
Double strike Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, put a +1/+1 counter on this creature.