Pendulum Switch (LEDD-ENC24) - Legendary Dragon Decks (2020 Date Reprint) Unlimited

You can target 1 card in your Pendulum Zone; Special Summon it. You can target 1 Pendulum Monster in your Monster Zone; place that Pendulum Monster in your Pendulum Zone. You can only use 1 "Pendulum Switch" effect per turn, and only once that turn.