Contagion Engine [Scars of Mirrodin] Common (Its mana symbols remain unchanged

(Its mana symbols remain unchanged

my new home resplendent with spires of weeds and pillows of fragrant pollen

Set: Mercadian Masques Type: Instant Rarity: Rare Cost: {3}{W} You may exile a white card from your hand rather than pay this spell's mana cost

Set: Hour of Devastation Prerelease Promos Type: Legendary Creature — Demon Rarity: Mythic Cost: {5}{B}{B}{B} Flying

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {U}

Contagion Engine [Scars of Mirrodin] Common (Its mana symbols remain unchangedSet: 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.)