Acolyte's Reward

The damage prevention shield is the oldest white trick in the book, but this one keeps the prevented damage and throws it back. The conversion is what makes it more than a Fog with a name: every point you stop becomes a point you redirect at any target, so a deck dense enough in white pips can untap a creature into a combat, eat the swing, and turn the would-be lethal blow into a removal spell or a face shot. The devotion clause is the whole tension. It scales off white mana symbols on permanents you already control, which means the card is dead in a deck running it as a splash and quietly enormous in a mono-white shell with double-pipped permanents on the board. That ties its ceiling to your boardstate rather than your hand, a deliberate inversion of the usual combat trick that reads off the card in isolation. The window is the appeal: instant speed lets you hold it through a declared-blockers step, prevent a swing, and convert the saved damage into reach the attacker never accounted for. It rewards the white player who has flooded the table with permanents and now wants those symbols to do something on defense, a recurring design problem devotion sets keep returning to. The rate is conditional by design, which is the point: the more committed you are to white, the more this stops being a speed bump and starts being a weapon.