Kykar, Zephyr Awakener + Capture of Jingzhou + Greenwarden of Murasa

Kykar, Zephyr Awakener

Capture of Jingzhou

Greenwarden of Murasa

How it works

1. Cast Capture of Jingzhou by paying its mana cost.
2. Kykar triggers, exiling Greenwarden of Murasa.
3. Resolve Capture of Jingzhou, causing you to take an extra turn after this one.
4. At the beginning of your end step, Kykar triggers, returning Greenwarden of Murasa from exile to the battlefield.
5. When Greenwarden of Murasa enters, it triggers, returning Capture of Jingzhou from your graveyard to your hand.
6. Repeat each turn.

This elegant loop achieves infinite turns by recycling a single extra-turn spell through repeated blinking. When you cast Capture of Jingzhou, Kykar, Zephyr Awakener's triggered ability steps in to exile Greenwarden of Murasa until the end step, neatly setting up the engine's return. Once Greenwarden of Murasa flickers back onto the battlefield, its entry trigger reaches into your graveyard to hand Capture of Jingzhou right back to you, ready to be cast again on your next extra turn.