Vault 21: House Gambit is a rare Enchantment — Saga card from Fallout (PIP), collector number 69. Current market price: $0.34 (foil $0.54), TCGplayer market prices via Scryfall.
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — Discard a card, then draw a card. III — Reveal up to five nonland cards from your hand. For each of those cards that has the same mana value as another card revealed this way, create a Treasure token.