The Porta Decumana
- See also: The Minstrel's Ballad: Ultima's Bane
The Porta Decumana
- Level
- 50 (Sync: 50)
- Item Level
- 42 (Sync: 60)
- Difficulty
- Normal
- Party size
- Light Party
4 man • 1
1 
2 
- Unsyncing
- Allowed
- Time limit
- 60 minutes
- Roulette
- Main Scenario
- Tomestones
100 - Req. quest
The Ultimate Weapon- Patch
- 6.1
“Making your way through the Praetorium, you sweep aside wave after wave of defenders before finally coming face-to-face with Gaius van Baelsar himself. Unable to overcome you by his own hands, the Black Wolf takes control of the Ultima Weapon and sets upon you once more. Do what you have come to do, and see that the magitek monstrosity never threatens Eorzea again.
— In-game description
The Porta Decumana is a level 50 trial introduced in patch 6.1 with Endwalker. It replaced the confrontation with Ultima Weapon during in the old 8-player version of The Praetorium.
Guide
Ultima Weapon
Phase 1: Titan
Uses landslides and earthquakes. Occasionally summons Titan, who does a proximity AOE and some more landslides. Ends with trapping you all in granite gaols, but Hydaelyn will break you out.
Phase 2: Garuda
[insert mechanics] Ends with putting up an impenetrable shield, but Hydaelyn will dispel it.
Phase 3: Ifrit
Eruption. [Also other things.] Ends with channeling an Eruption to cover the whole arena, but Hydaelyn stops that too.
Phase 4: Ultima
Magitek rays, crashing gunships. [Other things?] Ends with channeling another Ultima. It will look like you're definitely going to fail the DPS check, but Hydaelyn will grant you a level 3 Limit Break and DPS boost so you can finish him off.
