Topdeck the Halls is a mythic Enchantment card from Happy Holidays (HHO), collector number 20. Current market price: — (foil $29.40), TCGplayer market prices via Scryfall.
Decorated cards in your hand have miracle {S}. (Decorated cards include premiums, promos, and cards with alternate frames or art.) At the beginning of your upkeep, if you control twelve or more decorated permanents, you win the game.