Sword of Feast and Famine +Aggravated Assault +Aurelia, the Warleader +

Infinite attacks Infinite damage Revised by CR

Attach Sword of Feast and Famine to Aurelia Attack with Aurelia, her ability will trigger, gain an additional combat phase after that. Pay five mana and activate Aggravated Assault to gain a new combat phase, untap Aurelia. When Aurelia deals combat damage, untap all of your lands Repeat process for infinite combat

Legallity