So Diabolos (The Boss)

[Tharian]

Actually we know of one other Elder Primal thanks to the egi version of him we see in the last summoner quest : Belias.

Zodiark may also count. Though Zodiark is actually the antithesis to Hydaelyn more than anything else. But traditionally Zodiark was considered one of the most powerful Summons in the Final Fantasy series. And Zodiark is actually were Belias gets his power I do believe.

[Nalien]

Garuda has never been in any Final Fantasy Game EXCEPT MMO’s.

Not as a summon, but she's frequently been an enemy.

On Diabolos, is there actually any reason he can't return later? In XI he was effectively the final boss of Pso'Xja, only to return later. They could do a similar thing with XIV and just have him return later. Would actually be nice if Conjurer gets him, since he is tied to the Amdapori and White Mages, and Conjurer could always end up Conjuring him. Doesn't so much fit with White Mage, but Conjurer could always get a second Job that fits.

[Ghastly]

On a related note I would love to see the Odins, DIablos, and Siren's becoming summons for the Summoner class one day.

[Memoriae]

I would like to see siren be used for Scholars tbh, even if she isn't exactly a fairy

[Nalien]

You know... I wonder why people only ever mention Diabolos and Siren, what about Atomos?

Diabolos and Siren at least get shine as final bosses, Atomos is just a pathetic subboss for Crystal Tower, completely unexplained... His appearance in 1.23b is still unexplained too, he was just there to give us an end of the world event, I guess... Really wish they'd just gone with XIs system of calling the existing ones Cavernous Maw, and later we could face the real Atomos, explaining the Cavernous Maws from 1.23b and Crystal Tower... Instead Atomos is just... Meh...

He could have been an absolutely amazing boss, just like FFV. Something like a mix between Demon Wall, Decaying Gourmand, and Catoblepas; He targets a party member, and they start getting pulled into his maw every time he does a move, like Catoblepas he has a new target you can destroy to prevent that, if you fail to prevent it, he eats you like the Decaying Gourmand and you die instantly and get forced to Return like falling off at Demon Wall.

[Nekodar]

Healer should open the doors 100% of the time, or else they are lazy. They are literally standing there doing nothing while he charges his attack because no one, including the tank, will take any damage.

I'm a healer and I open the doors only if noone else steps up for it. Reason being I'm bad at marking and/or remembering which doors to open.
So far I've only had one run where people would actually help mark the doors, with most runs both tank and dps just standing there refusing to help at all.

[KarstenS]

Healer should open the doors 100% of the time, or else they are lazy.

You're lazy. What I do when he charges? Mostly healing up the not avoided avoidable dmg and stoneskin the whole party. Then the next doors also want to get the marks. In this time there is at least one ball, one cleave and one not avoided aoe, that wants to get healed.

The healer is definitively the onliest that do have better things to do than marking and opening the doors.

[Charisma]

[Healers blablabla] They are literally standing there doing nothing while he charges his attack because no one, including the tank, will take any damage.

Why should someone else open the doors, than the one that marks? pugs will always f. it up at this point.

[Moqi]

I would love trials for Behemoth, Odin, Diablos and Siren! Maybe for the relic quest down the line we'll have more trials. I like those.