Unstable Mutation⁣ - Ultimate Masters⁣ (Uncommon)⁣ [80]

Unstable Mutation is an Aura from Ultimate Masters that enchants a creature, giving it a +3/+3 boost. However, at the beginning of the enchanted creature's controller's upkeep, it receives a -1/-1 counter, making it a temporary power increase with a trade-off. This card is effective for aggressive strategies that aim to deal damage quickly before the downside kicks in, but it requires careful timing and consideration of your creature's survivability. Available from Vault of Cards, a UK-based Magic: The Gathering store with fast delivery.