{"product_id":"erratic-mutation-modern-masters-common-42-262014","title":"Erratic Mutation⁣ - Modern Masters⁣ (Common)⁣ [42]","description":"\u003c!-- AI-SEO START timestamp=\"2026-04-17T02:56:48.404836\" --\u003e\nErratic 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.\n\u003c!-- AI-SEO END --\u003e","brand":"Vault of cards","offers":[{"title":"English \/ Good \/ Normal","offer_id":42619434958983,"sku":"MMA42-128355","price":0.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/6900\/4423\/files\/7ef14d4e-4727-4bc7-bc15-b0d31e19df8c.jpg?v=1776197614","url":"https:\/\/vaultofcards.co.uk\/products\/erratic-mutation-modern-masters-common-42-262014","provider":"Vault of Cards","version":"1.0","type":"link"}