Contagion Engine [Scars of Mirrodin] RC15 pay life equal to its

pay life equal to its mana value rather than paying its mana cost

Set: Core Set 2021 Type: Legendary Artifact Rarity: Mythic Cost: {7} You may spend mana as though it were mana of any color

−7: Search your library for any number of Elf creature cards

Each opponent sacrifices a creature

Contagion Engine [Scars of Mirrodin] RC15 pay life equal to itsSet: Scars of Mirrodin Type: Artifact Rarity: Rare Cost: {6} When Contagion Engine enters the battlefield, put a 1 1 counter on each creature target player controls. {4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and or players, then give each another counter of each kind already there. Then do it again.)