Cast Down

Two-mana unconditional creature kill in black has a well-worn problem: at the rate players want, it erases the very threats sets build their marquee slots around. The fix here is a single word in the targeting clause. By restricting the spell to nonlegendary creatures, the design gives black its clean two-mana answer back while carving out a protected lane for the legendary bombs that anchor a set's top end. That restriction is the whole point: it makes the rate honest. You get Doom Blade efficiency against the rank-and-file, and against the cards a deck is actually built around (the planeswalker-adjacent legends, the commander, the marquee finisher) you are holding a dead card. It is a deliberate inversion of black's historical reach. For most of the game's life, the constraints on premium black removal were color clauses (the old "nonblack" tax of Doom Blade and Terror) or life payments; this trades all of that for a creature-class line that scales with how legend-heavy the format happens to be. The result is a removal spell whose ceiling and floor are set entirely by the metagame around it rather than by a fixed condition printed on the card. Cheap, instant-speed, and absolute within its lane, it is the modern template for "good removal with a legend-shaped hole in it," a design lever Wizards has reached for repeatedly since.