Magic: The Gathering - Duskmourn: House of Horror Play Booster Sleeve. Players will dare to enter this plane-enveloping House where their fears come to life. Evil manifests Nightmares and Glitch Ghosts and turns toys and shadows lethal. Players may even face the evil within themselves—but they will be rewarded for their bravery. Duskmourn: House of Horror Play Booster Sleeve 14 Magic: The Gathering cards 1–4 cards of rarity Rare or higher 3–5 Uncommon 6–9 Common 0-1 Land cards (Traditional Foil Land replaces a Land in 20% of boosters.) 1 card of any rarity is Traditional Foil; A Traditional Foil Mythic Rare can be found in 1% of boosters Please note: All trading card products are non-refundable and cannot be exchanged once the order has been processed.