Radiant Kavu

A hate-creature aimed at two of the five colors, and specifically the two that sit opposite this shard on the color wheel. The activated ability fogs all combat damage that blue and black creatures would deal, a repeatable wall against exactly the part of the deck pool that builds around evasive tempo and stabilizing flyers. That targeting is the entire premise: against a mono-white control deck or a red aggro mirror it sits there inert, but against a blue-black opponent trying to race through the air or grind out a stalemate it can shut down the offense outright. Because the prevention recurs each turn rather than firing once, an untouched body threatens to neutralize a whole category of attackers indefinitely, forcing the opposing deck either to kill it or pivot toward beaters outside those two colors. What undercuts that ceiling is the cost: paying all three of its colors every turn to fog is a steep tax, and the 3/3 frame is unremarkable enough that it falls to most of the removal those same blue and black decks already run. It comes from a design tradition Wizards reaches for when a set leans on enemy-color rivalries, stapling the answer card to a creature rather than printing a dedicated sideboard spell, and trusting repeatability to justify the awkward triple-color activation.