Charm Peddler

Spellshapers staple an instant's effect to a body and gate it behind tap, mana, and a discarded card, and this one bottles damage prevention: a recurring shield where Healing Salve fires once and is gone. The catch is in the math, not the timing. The ability resolves at instant speed, so it answers what actually happens: a burn spell on the stack, a creature already swinging in combat. You can hold up the activation and name the source after attackers are declared rather than guessing what your opponent will throw. What hobbles it is the upkeep on the shield. Each use spends a card, so the engine pays out exactly as well as the cards you are willing to feed it, and a 1/1 telegraphing its plan invites removal before it ever fires twice. The Spellshaper also has to survive a full turn cycle and untap before it acts again, a tax this body can rarely afford. Across the class, the combination of tap, mana, and discard never found a home: the input cost ran too steep for the rates on offer, and the fragile shells died to everything. This is a tidy miniature of why the mechanic reads better than it played, a repeatable effect that demands more fuel than it will ever return.