Ultimate Price

The condition is the whole bet: two mana to destroy almost anything, so long as the thing wears exactly one color. That clause turns a premium removal rate into a metagame read. Against monocolored aggressive threats and the on-color value creatures that fill most fair decks, it kills everything for less than the going rate; against gold cards, multicolor commanders, and the colorless artifact creatures that have grown more common with each passing era, it sits dead in hand. Doom Blade prices its exception by color, refusing to touch black creatures; this one prices its exception by color count, an axis that punishes a different kind of opponent. A mono-blue tempo deck or a mono-red aggro list offers nothing but legal targets, while a deck leaning on Niv-Mizzet, a charm-cast token, or a gold finisher strands the card the moment those threats hit the board. Note that color count is the creature's, not the deck's: a two-color deck still runs plenty of monocolored bodies, so this is a read on what your opponent puts on the battlefield, not what shards they registered. That is the inversion that makes it interesting: most cheap removal asks you to predict a problem, while this one asks you to predict an attribute. It is a precision instrument that rusts when the format trends toward gold-card density or colorless beaters, and shines when monocolored decks dominate.