All permanents on the battlefield. Magistrate's Scepter has at least one charge counter on it. available each turn.
Atraxa, Praetors' Voice + Myojin of Towering Might + Sage of Hours
Combo result
Infinite turns. Prerequisites
All permanents on the battlefield. Myojin has at least one indestructible counter on it.
Magosi, the Waterveil + Nesting Grounds + Atraxa, Praetors' Voice
Combo result
Infinite turns. Prerequisites
Nesting Grounds and Atraxa are on the battlefield. Magosi the Waterveil is on the battlefield with an eon counters on it. Both lands are untapped and you have not yet made your land drop for the turn.