Grim Monolith (Jon Finkel) [World Championship Decks 2000] Conflux if another creature is on

if another creature is on the battlefield

Set: Scars of Mirrodin Type: Artifact Rarity: Rare Cost: {6} When Contagion Engine enters the battlefield

Set: Modern Horizons Type: Legendary Creature — Human Artificer Rarity: Mythic Cost: {2}{U}{U} When Urza

Set: Champions of Kamigawa Type: Legendary Land Rarity: Rare Boseiju

"you'll see a kidney and a spleeny

Grim Monolith (Jon Finkel) [World Championship Decks 2000] Conflux if another creature is onSet: World Championship Decks 2000 Type: Artifact Rarity: Rare Cost: {2} Grim Monolith doesn't untap during your untap step. {T}: Add {C}{C}{C}. {4}: Untap Grim Monolith. Part prison, part home.