Vraska, Relic Seeker is a mythic Legendary Planeswalker — Vraska card from Ixalan Promos (PXLN), collector number 232p. Current market price: $7.57 (foil $13.09), TCGplayer market prices via Scryfall.
+2: Create a 2/2 black Pirate creature token with menace. −3: Destroy target artifact, creature, or enchantment. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") −10: Target player's life total becomes 1.