Keyword Punisher

Cards whose effect keys off an opponent's keyword ability, hosing creatures that have it rather than the board at large. The classic targets are flyers: Plummet destroys a single creature with flying, Whirlwind sweeps all of them, Hurricane and Windstorm deal X damage to creatures with flying, and Bower Passage stops flyers from blocking your creatures. The shared thread is that the keyword itself is the trigger condition, so a creature without it walks free. Distinct from broad removal that ignores keywords entirely, and from cards that merely grant or reward a keyword; these cards turn a creature's own ability into a liability.