The Reviser Seed is an item in Pokémon Mystery Dungeon: Explorers of Sky. Unlike the Reviver Seed, Reviser Seed revives, then faints the Pokémon. It cannot be sold. It turns into a Plain Seed after use. Only Pokémon with Item Master can use it. When it is used, the game tells you that Reviser Seed is an "s" not a "v".