Magosi, the Waterveil + The Ozolith + Kamahl, Heart of Krosa + Cayth, Famed Mechanist

Magosi, the Waterveil

The Ozolith

Kamahl, Heart of Krosa

Cayth, Famed Mechanist

How it works

1. During your precombat main phase, use Cayth to put an additional eon counter on Magosi.
2. Activate Magosi's third ability by tapping it, removing an eon counter from it and returning it from the battlefield to your hand.
3. When Magosi leaves the battlefield, The Ozolith's first ability triggers due to Kamahl, putting an eon counter on The Ozolith.
4. Resolve the Magosi ability, causing you to take an extra turn after this one.
5. Play Magosi.
6. At the beginning of your combat phase, The Ozolith triggers, moving an eon counter from itself onto Magosi.
7. Repeat each turn.

This ingenious engine bends time itself by manipulating Magosi, the Waterveil's counter-removal restriction: instead of taking the intended penalty of skipping a turn, you bounce Magosi back to your hand and immediately replay it, letting The Ozolith catch and safely hold the discarded eon counter while Magosi is away. Cayth, Famed Mechanist accelerates this process by proliferating the eon counters right when you need them, while Kamahl, Heart of Krosa rounds out the battlefield as a powerful commander who can animate your lands or grant a massive combat boost. By looping this sequence each turn, you deny your opponents any further action and lock down the game with an infinite succession of extra turns.