Cast Surge to Victory by paying 4, exiling Justiciar's Portal 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 Justiciar's Portal without paying its mana cost.
Resolve Justiciar's Portal, blinking Aurelia.
Repeat from step 2 each combat phase.
This clever loop turns a single well-placed spell into an endless march of battle. By exiling **Justiciar's Portal** with **Surge to Victory**, you turn every successful strike into a free blink effect that continually resets your primary attacker. When **Aurelia, the Warleader** charges into the red zone, her triggered ability untaps your team and grants you a fresh combat phase right after the current one concludes. Connecting with that attack triggers the copy of **Justiciar's Portal** to blink Aurelia, clearing away summoning sickness-equivalent tracking and letting her attack again to restart the entire cycle for infinite combat phases and infinite damage.