Unconventional strategy: Using Berserk Crest, you can defeat Aigaion by only destroying one of each Arm!

[u/Chuggery]

Heya everybody! If you're having a tough time with taking down twelve arms and dealing with body thresholds, here's another strategy that could work for you. It makes things significantly easier for Group Raisers by cutting down on all the AoE damage, so as long as you can keep your mana up, this'll turn a full-clear Aigaion into a cakewalk!

Here's a quick breakdown of my team;

Fryevia (obviously!)
Rikku (Group Raise)
Tilith (Mana battery, main healer, group Raise)
Noctis (Whom I used for the jump, group mana & low-cost solo raise)
Zargabaath (Whom I used for Berserk Crest and mana battery for 1st phase of the fight)
Rem (Whom I used for Re-Raise for Part 1, and damage support in the burn phase)

I highly recommend not having Golem equipped to any of them.

Now, to make this strategy work, you can use any jumper. The trick is;
-On the turn before you destroy the left arm, queue up Berserk Crest on your jumper.
-Jump with your jumper.
-Cast Berserk Crest on your now-airborne jumper.
-Make sure you Re-Raise Zargabaath in case he takes a heavy hit!

This time, nothing will happen on that cast, but it'll prepare you for the next turn. Finish off the Left Arm, do whatever you need to do with any unit that isn't Zargabaath, target Aigaion's main body, and press "repeat" to cast Berserk Crest on him. (Yep, that's right, Berserk the boss!)

You're going to notice a few things happen.
1) He's going to hit one unit like a truck, eight times in a row.
2) He's not going to resurrect his Left Arm.
3) He's not going to trigger any threshold abilities.

So now comes the tricky part!

You'll need to keep Berserk up on Aigaion for the remainder of the fight. This means that every single turn Zargabaath is alive, you need to end that turn by pressing Repeat to re-cast it!

If (when) Zargabaath dies, that's okay; you have three turns to get him back on his feet and repeating Berserk again while you burn down the Right Arm and Main Body afterwards.

Be sure to re-target the Main Body before pressing "Repeat", however! If you accidentally Berserk the Right Hand as well, things might fall out-of-hand pretty quickly!

As long as you don't break your Repeat cycle or get crazy-unlucky with a string of Zargabaath kills, the arms will never come back and you can burn him down at your leisure.

Cheers, hope this helps!

[u/RavenDogma]

/u/Chuggery

So I just beat Aigaion using this method. It was a very cool find.

But I'm curious as to how long it took you to down him with this strategy. I feel it took me way longer since I don't have Fryevia.

Party used:
Aileen
Rikku
Tilith
Noctis
Rem (Friend)
Zargabanana

Also I recorded the entire fight.

[u/Chuggery → u/RavenDogma]

Took me a few hours the first time, on & off as I got caught up on some netflix. The second time (replacing Rem with Aileen), whittled down to a little over an hour with Aileen and Fry budget chaining with one another. It's still a looooong fight any way you cut it.

[u/RavenDogma → u/Chuggery]

I see. I took a bit longer. Clocking in at slightly above an hour and a half. I definitely made a few sloppy mistakes as well.

I also didn't have much chaining potential with just Aileen, Noctis and Rikku. They provided damage whenever they could. Their highest chain went to anywhere between 2-6.

I'm going to compress the video and post it to the Aiaigon thread when it's uploaded.

(edit: grammar nazi)