This magic item resembles a chess rook of onyx or marble stone with runes engraved into the base.Whenever you take the dash action,you can immediately move up to 25ft in a straight line.As an action, you can transform the chess piece into a stone golem under your control,which appears within 5ft of you.The stone golem remains for 1 minute or until it drops to 0hp after which it returns back to your hand as a chess piece.Once you turn the chess piece into the stone golem,you can not do so again until the next day at dawn.

Notes: a creature that has won a game of chess