Sporogenic Infection is a uncommon Enchantment — Aura card from Duskmourn: House of Horror (DSK), collector number 117. Current market price: $0.23 (foil $0.23), TCGplayer market prices via Scryfall.
Enchant creature When this Aura enters, target player sacrifices a creature of their choice other than enchanted creature. When enchanted creature is dealt damage, destroy it.