Erratic Mutation⁣ - Modern Masters⁣ (Common)⁣ [42]

Erratic Mutation is a two-mana instant from Modern Masters that allows you to target a creature and give it a temporary boost or reduction based on the mana value of a revealed nonland card from your library. This card can be used to weaken an opponent's creature or enhance your own, making it a flexible tool in blue-based control or tempo decks. Just be aware of the randomness involved, as the outcome can vary depending on your library's composition. Available from Vault of Cards, a UK-based Magic: The Gathering store with fast delivery.