Vedalken Shackles is a special Artifact card from Kaladesh Inventions (MPS), collector number 53. Current market price: — (foil $53.57), TCGplayer market prices via Scryfall.
You may choose not to untap this artifact during your untap step. {2}, {T}: Gain control of target creature with power less than or equal to the number of Islands you control for as long as this artifact remains tapped.