Cast Surge to Victory by paying 4, exiling Momentary Blink from your graveyard and giving creatures you control +2/+0 until end of turn.
Declare Aurelia as an attacker.
Aurelia triggers, untapping all creatures you control and causing you to get an additional combat phase after this one.
Deal combat damage to an opponent using Aurelia.
Surge to Victory triggers, casting a copy of Momentary Blink without paying its mana cost.
Resolve Momentary Blink, blinking Aurelia.
Repeat from step 2 each combat phase.
This brilliant loop turns a single explosive strike into an endless war by weaponizing the graveyard with Surge to Victory, which turns the exiled Momentary Blink into a repeatable reward for combat damage. When Aurelia, the Warleader wades into battle, her attack trigger grants you a fresh combat phase and untaps your board, allowing you to deal the damage needed to trigger Surge to Victory over and over again. Each time that combat damage lands, it copies Momentary Blink to exile and return Aurelia, resetting her "first time each turn" attack restriction so she can trigger her extra combat phase all over again.