Terra, Herald of Hope + Aurelia, the Warleader + Ashnod's Altar + Amulet of Vigor
Terra, Herald of Hope
Aurelia, the Warleader
Ashnod's Altar
Amulet of Vigor
Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite self-millInfinite combat phasesInfinite untap of creatures you controlInfinite mana creatures you control can produceInfinite combat damage
How it works
At the beginning of your combat phase, Terra's first ability triggers, causing you to mill two cards.
Declare Terra and Aurelia as attackers.
Aurelia triggers, causing you to untap all other creatures you control and to get an additional combat phase after this one.
Deal combat damage to an opponent using Terra, triggering its second ability.
Holding priority, activate Ashnod's Altar by sacrificing Aurelia, adding CC.
Resolve the Terra ability, choosing to pay 2 to trigger its reflexive ability, returning Aurelia from your graveyard to the battlefield tapped.
When Auriela enters the battlefield, Amulet of Vigor triggers, untapping Aurelia.