Dwarven Reinforcements is a common Sorcery card from Kaldheim (KHM), collector number 134. Current market price: $0.27 (foil $0.28), TCGplayer market prices via Scryfall.
Create two 2/1 red Dwarf Berserker creature tokens. Foretell {1}{R} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)