Sorin's Vengeance

Ten is the number that does all the talking here: exactly the figure that turns most heads-up life totals on their side, paired with a symmetrical ten-point gain that keeps the cast from being a tempo loss even when it fails to close. This is the planeswalker-flavored "named" spell tradition, a vampire lord's signature move expressed as raw points rather than a board state, and it lands in the awkward middle such cards always occupy: too slow to be a control finisher that wants efficiency, too unconditional to be a combo piece, too greedy to be efficient removal. What pays for the swing is the cost line. Three black pips on top of four generic mana commit you hard to mono-black, and seven mana means a full turn spent on a spell that touches exactly one player or one planeswalker and otherwise leaves your opponent's board untouched. The reward for that commitment is reach: a way for a grindy black deck to convert a stalled game into a kill without needing creatures to connect, or to swing back and bury a planeswalker that has run away with the game. It never points at a creature, so it is a closer rather than an interaction spell against the board proper. It asks you to already be winning enough to want a button that ends the conversation, then hands you both the kill and the cushion in the same breath.