Life Matrix [Legends] Modern Masters if another creature is on

if another creature is on the battlefield

Set: Vanguard Series Type: Vanguard Rarity: Rare Sacrifice a permanent: Return target creature to its owner's hand

Set: Revised Edition Type: Land — Island Swamp Rarity: Rare ({T}: Add {U} or {B}

One fleet was gone

Set: Aether Revolt Prerelease Promos Type: Legendary Artifact Creature — Thopter Rarity: Rare Cost: {1} Flying

Life Matrix [Legends] Modern Masters if another creature is onSet: Legends Type: Artifact Rarity: Rare Cost: {4} {4}, {T}: Put a matrix counter on target creature and that creature gains "Remove a matrix counter from this creature: Regenerate this creature." Activate only during your upkeep.