Wojek Embermage
A repeatable tap-to-ping ability whose blast radius is dictated not by the source but by whatever you point at. Tap the Embermage, choose a creature, and the color of that target decides who else takes a point: every other creature sharing that color is caught in the splash, including, if you aim at anything red, the Embermage itself. Radiance keyed damage spread to color rather than color identity, the actual colors a permanent has in game and nothing more, so a colorless artifact creature catches a single point and nothing radiates, while a green creature on a board flooded with green turns the activation into a recurring sweep of every one-toughness body the opponent has committed. That conditional radius is the whole tension. You cannot widen the spread past what the table offers, and you cannot fully sidestep the friendly fire, so the ability rewards reading how concentrated each side's board is before activating rather than firing on reflex. That was the unusual question Radiance asked across the small handful of cards that carried it: not how much damage a source deals, but how many same-colored creatures happen to be standing on either side of the table. The keyword never returned, which leaves designs like this fragile 1/2 as the surviving window into a mechanic that tied splash damage to shared color, drawback and upside fused into the same activation.
