Boil

In Commander, Boil is a meta-call card with a ceiling that's almost unfair — blue is the most-played color in the format, and wiping every Island at instant speed during an opponent's end step can strand hands full of counterspells and leave control players with nothing but lands they can't tap. In Legacy and Vintage, Boil has seen sideboard play as a nuclear answer to Island-heavy blue tempo and control shells, where resolving it often ends the game outright. Modern's fetchland ecosystem makes it marginally less reliable since basics are thin on the ground, but any Island-centric build still gets punished hard. Oathbreaker mirrors Commander's calculus — Boil is either a blowout or a dead card depending entirely on how much blue is across the table.