Repeated Reverberation

Repeated Reverberation is a high-ceiling red payoff spell for combo and explosive turns. Its main strength is doubling your next instant, sorcery, or loyalty ability twice, which can turn a single burn spell, tutor, extra-turn spell, or planeswalker activation into a huge swing. Best use cases are in spell-heavy decks, planeswalker decks, and combo shells that can set up one powerful follow-up turn. It shines with high-impact spells like extra-turn effects, big draw spells, removal that needs multiple targets, or burn to finish the table. It also works well with planeswalkers that have strong loyalty abilities, especially ultimates or repeatable value abilities. Key synergies include copy-based turns with cards that already scale well when copied, and decks that can protect it until a big payoff turn. It pairs especially well with red ritual mana, storm-adjacent shells, and commanders or strategies that care about spells being cast, since the copied spell is not cast but still gives massive value from one spell. Practical tip: cast it when you can immediately follow with a game-changing spell or loyalty activation, because it does nothing on its own and is strongest when the copied effect is worth the 4-mana setup.