Sorin the Mirthless is a mythic Legendary Planeswalker — Sorin card from Innistrad: Crimson Vow (VOW), collector number 337. Current market price: $6.81 (foil $9.63), TCGplayer market prices via Scryfall.
+1: Look at the top card of your library. You may reveal that card and put it into your hand. If you do, you lose life equal to its mana value. −2: Create a 2/3 black Vampire creature token with flying and lifelink. −7: Sorin deals 13 damage to any target. You gain 13 life.