Sorin, Solemn Visitor is a mythic Legendary Planeswalker — Sorin card from The List (PLST), collector number KTK-202. Current market price: $0.62, TCGplayer market prices via Scryfall.
+1: Until your next turn, creatures you control get +1/+0 and gain lifelink. −2: Create a 2/2 black Vampire creature token with flying. −6: You get an emblem with "At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice."