The Dominion Bracelet is a mythic Legendary Artifact — Equipment card from Edge of Eternities Promos (PEOE), collector number 239p. Current market price: $0.61 (foil $0.80), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+1 and has "{15}, Exile The Dominion Bracelet: You control target opponent during their next turn. This ability costs {X} less to activate, where X is this creature's power. Activate only as a sorcery." (You see all cards that player could see and make all decisions for them.) Equip {1}