Jaya, Fiery Negotiator is a mythic Legendary Planeswalker — Jaya card from Dominaria United (DMU), collector number 133. Current market price: $0.48 (foil $0.63), TCGplayer market prices via Scryfall.
+1: Create a 1/1 red Monk creature token with prowess. −1: Exile the top two cards of your library. Choose one of them. You may play that card this turn. −2: Choose target creature an opponent controls. Whenever you attack this turn, Jaya deals damage equal to the number of attacking creatures to that creature. −8: You get an emblem with "Whenever you cast a red instant or sorcery spell, copy it twice. You may choose new targets for the copies."