Sorin, Grim Nemesis is a mythic Legendary Planeswalker — Sorin card from Shadows over Innistrad (SOI), collector number 251. Current market price: $4.31 (foil $10.55), TCGplayer market prices via Scryfall.
+1: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its mana value. −X: Sorin deals X damage to target creature or planeswalker and you gain X life. −9: Create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the highest life total among all players.