Change of Heart

A Fog with a scalpel instead of a tarp. Where Fog blanks an entire attack step, this answers exactly one creature, at instant speed, for a single white mana: the cheapest possible way to neutralize a lone threat without dealing with the creature itself. The body stays on the battlefield, fully untapped for blocks; only the attack is denied. That precision is the whole point, and Buyback is what turns a one-shot trick into a repeatable answer. Pay the extra cost and the spell loops back to you instead of going to the graveyard, which reframes it as a recurring tax on a single attacker rather than a card you spend once and lose. The tension is in the math: cast it cheaply when you need it once, or commit the larger sum when you expect to fend off the same creature turn after turn. It is a defensive piece built around a single combatant, not a board, so it rewards a game state where one creature carries the opponent's plan. The recursion mechanic it carries was an attempt to deliver card advantage through repetition rather than replacement, and few cards express the idea in such small-ball terms: a near-cantrip loop that never refills your hand but refuses to leave it, trading mana for the right to say no to the same attacker indefinitely.