Prismatic Strands

Damage prevention by color is an old design lever, but most prevention cards lock you into a single color guess before combat resolves; this one lets you wait until the stack is built and the attack is declared, then name the color that hurts. A board of red sources commits to the swing, you respond, and the entire turn's damage from those sources evaporates. Against a mono-colored aggressive deck or a single big burn spell, that is a one-card fog with a target painted on a whole color. The flashback clause is where the real economy lives: instead of paying mana again, you tap an untapped white creature, which turns the graveyard copy into a second prevention shield fueled by board presence rather than your land count. The catch is that white creature requirement: you need bodies, and they need to be untapped, so the recast wants a wide white board that is not already committed to attacking. That tension (between using your creatures to win and holding them back to refire the spell) is the whole interaction worth thinking about. It is narrow against multicolor pressure and crushing against the focused one-color beatdown it was built to deflate.