Return those creatures to their owners' hands
Set: Ravnica: City of Guilds Type: Land — Island Swamp Rarity: Rare ({T}: Add {U} or {B}
000 Type: Instant Rarity: Rare Cost: {8}{B}{B}{R} This spell costs {1} less to cast for each creature that died this turn
but I believe a more mundane power source might suffice
each other player may put a creature card from their hand onto the battlefield
Everywhere // Copy Double-Sided Token [Duskmourn: House of Horror Tokens] Human Performer Return those creatures to theirSet: Duskmourn: House of Horror Tokens Type: Token Land Rarity: Common This land is a Plains, Island, Swamp, Mountain, and Forest. ({T}: Add {W}, {U}, {B}, {R}, or {G}.) Reverse Type: Token (This token can be used to represent a token that's a copy of a permanent.)