Vampire Slayer

Deathtouch that only points one direction, and only at one tribe. Any damage this deals to a Vampire, in combat or otherwise, wipes that creature out regardless of its toughness, which turns an ordinary body into a hard wall against a whole creature type. The entire tension lives in the target restriction: against a board with no Vampires the ability never fires, so this card's ceiling and floor are set not by its own stats but by what the opponent is playing. That is the classic hatebear lever, the effect kept deliberately narrow so the rate on the body can stay clean, with the payoff spiking when the field tilts toward the named tribe. Vampires being one of the game's recurring tribal pillars means the hook lands more often than most single-tribe hosers, but the card still lives or dies on that matchup coin flip. Note too that the trigger fires on any damage dealt, not just combat, so a way to ping a Vampire for one converts this from a one-time blocker into repeatable removal that keeps firing every time you can send a point their way. It is a narrow answer welded to a warm body: a purpose-built punisher for a specific archetype that still keeps a warm body when that archetype never shows up.