Metallic Mimic [Aether Revolt] Ox you may put a charge

you may put a charge counter on Darksteel Reactor

While most power is used for ordinary

you may cast that card and you may spend mana as though it were mana of any color to cast that spell

Set: Eternal Masters Type: Artifact Rarity: Mythic Cost: {0} At the beginning of your upkeep

{T}: Add {R}{R}

Metallic Mimic [Aether Revolt] Ox you may put a chargeSet: Aether Revolt Type: Artifact Creature Shapeshifter Rarity: Rare Cost: {2} As Metallic Mimic enters the battlefield, choose a creature type. Metallic Mimic is the chosen type in addition to its other types. Each other creature you control of the chosen type enters the battlefield with an additional +1 +1 counter on it.