Dual Casting

Spell-copying had always lived on its own cards (the Twincast and Reverberate line, the storm-era Fork descendants), priced as a single-shot effect because copying is a tempo and card-advantage swing that compounds fast. Stapling that ability to a creature breaks the single-shot assumption. For a red mana and a tap, repeatable every turn you can pay, any instant or sorcery you control becomes a two-for-one with the targets rebuilt to your liking. The friction is no longer the copy itself but whether the enchanted creature survives and whether you have spells worth doubling. That gates it honestly: the Aura needs a body already in play before it accomplishes anything, and a removal spell aimed at the host strands your investment. The reward for clearing those hurdles is steep. A copied burn spell ends games; a copied tutor or ritual breaks open whatever loop is sitting next to it. The activation is sorcery-paced only insofar as your spells are, so an instant in hand plus an open creature lets you fork at the end step or when you want to punish a spell already on the stack. It reads like a curiosity and plays like a combo piece looking for the right second card.