Finishing the Main Scenario Quests of Dawntrail is just the first step of your journey in Tural.
How To Unlock Porta Decumana
The Trial isautomatically unlocked after completing The Praetorium dungeon.
Porta Decumanadoesn’t appear in the regular Trials Roulette.
The first phases are semi-automatic, anddamage is only really required for the final phase.
Geocrush
Proximity AoE
Marks a point on the arena to deal AoE damage.
Move away from the marked point to reduce damage taken.
Landslide
Line AoE
Summons Titan to use its signature smash on the ground.
The Weapon itself will later repeat the attack.
Weight of the Land
Circle AoE
Various circle AoEs appear across the room.
Dodge them as needed.
Granite Interment
Special
Used once it reaches 80% HP.
Locks down all players inside gaols.
It later attempts to use Earthen Eternity, but fails and loses Titan’s powers.
Mistral Shriek
After using Eye of the Storm, summons Garuda to use an AoE around herself.
Stand away from her but inside the safe zone in the middle.
Vortex Barrier
Used around 55% HP.
Becomes invincible to all attacks.
It attempts to use Headman’s Wind, but fails and loses Garuda’s powers.
Dodge in a similar fashion.
Vulcan Burst
Knockback
Ifrit appears in the center of the arena and pushes all players back.
Stay next to him at the center after he appears.
Radiant Blaze
Used once the Weapon is around 30% HP.
Launches an unavoidable attack covering the whole area.
You’ll be shielded once again, and can burst down the Ultima Weapon.
you’re able to still attack the Ultima Weapon during his Radiant Blaze cast.
Homing Ray
Target AoE
Targets all players with a circle AoE.
Stay away from each other and heal after it explodes.
Tank Purge
Aetheric Boom
Pushes all players back and summons two pairs of orbs tethered to each other.
Touch them to pop them before they encounter each other.
Laser Focus
Stack AoE
Stack damage targeted at the healer.
The whole party must stack with them.
Citadel Buster
Point-Blank AoE
A direct laser in front of the weapon, immediately after the previous attack.
Magitek Bits
Summons various mechanical laser shooters across the room.
Dodge them as usual.
Explosion
Uses four proximity markers at each corner of the arena.
Run center and wait until they explode, then dodge again as the Weapon follows up with anotherCitadel Buster.
At the same time, you’ll be granted a full Limit Break 3.
Any DPS (Melee preferably) should use it to defeat the Weapon once and for all.
Don’t bother about healing and just kill it.
Otherwise, you’ll be wiped and have to restart from the Ultima phase once again.
Porta Decumana Rewards
There are no specific rewards for clearing Porta Decumana.
It can take a bit longer than other duties, but it’s worth it when leveling your Jobs.
Here’s where to get every Trial Orchestrion Roll in Final Fantasy XIV.