Chandra's Regulator is a rare Legendary Artifact card from Core Set 2020 Promos (PM20), collector number 131s. Current market price: — (foil $1.00), TCGplayer market prices via Scryfall.
Whenever you activate a loyalty ability of a Chandra planeswalker, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy. {1}, {T}, Discard a Mountain card or a red card: Draw a card.