Teferi, Hero of Dominaria is a mythic Legendary Planeswalker — Teferi card from Secret Lair Drop (SLD), collector number 248. Current market price: $9.90 (foil $10.35), TCGplayer market prices via Scryfall.
+1: Draw a card. At the beginning of the next end step, untap up to two lands. −3: Put target nonland permanent into its owner's library third from the top. −8: You get an emblem with "Whenever you draw a card, exile target permanent an opponent controls."