Channel Harm
The fog that fights back. White's prevention spells have always traded tempo for survival: blank the alpha strike, eat the burn turn, live to untap. This one keeps the wall up but inverts the math on the back end, taking each point of damage the opponent's sources would have dealt to you and redirecting it as a matching return volley at a creature of your choosing. The redirection is optional and each prevention event is capped at exactly what it stopped, so the card is parasitic on the opponent's aggression: it does nothing against a board that holds back, and it does everything against a board that swings out. That conditionality is what pays for the effect; an unconditional six-mana removal-plus-fog would be absurd, but a removal spell that only fires when you are being harmed is a punish, not a plan. The scope is precise and worth reading carefully: it covers damage to you and your permanents from sources you don't control, which means an opposing alpha strike, a damage-based sweeper, or incoming burn all feed the redirected damage, while your own pingers and combat tricks stay untouched. It rewards the player who can goad or simply absorb a big committed swing and then point the biggest prevented block back at the one creature that matters. A blowout in the literal sense: the harder they hit, the bigger the gun they hand you.
