Your Wish Is My Command is a rare Sorcery card from Mystery Booster 2 (MB2), collector number 540. Current market price: $0.19, TCGplayer market prices via Scryfall.
You may cast an instant or sorcery spell from your sideboard. If you cast a modal spell this way, you may choose an additional mode. (A modal spell lets you choose one or more modes from a bulleted list.)