Aegis of Honor

Burn spells operate on a one-way assumption: damage flows from the caster to the target, and the target eats it. This enchantment quietly breaks that assumption. Pay one mana and the next instant or sorcery that tries to burn you gets turned around on its controller, so the Lightning Bolt aimed at your face lands on the face of whoever cast it. The activation is repeatable as long as you have mana, which means against a dedicated burn deck it can flip an entire turn's worth of damage back onto the aggressor, racing them with their own gas. The narrowness is the whole bargain: it does nothing against creatures, nothing against direct-damage abilities, nothing against anything that is not an instant or sorcery dealing damage to you specifically. That makes it a hedge built for a single matchup, the kind of reactive piece that sits dead until the exact threat it answers walks in. But within that lane it is brutally effective, converting an opponent's removal-and-reach plan into a liability. It descends from white's anti-burn tradition of punishment rather than mere prevention, the philosophical opposite of a fog: instead of stopping the damage, it sends the sender the bill.