Raid Boss Revival

Unlike regular raids where you have to run quests and get a random encounter and levelling up the raids, you can fight the raid bosses right away which are separated for high difficulty (lvl 50) and brutal difficulty (lvl 99).

They are only available in "multi" section of the game. Not necessarily multiplayer only since some units might be strong enough to solo a raid boss.

Each of them will give 50 visiores when completing it for the first time, so you can get a total of 400 visiores.

If a party fails to clear the boss, doing the fight again will reset the boss' HP, instead of resuming the leftover HP.

Certain units can solo the raid bosses in Brutal difficulty. This makes it much easier and faster (especially with macro) to auto-farm. Unfortunately, the ones shown to be able to do these are limited-time units.

If you have these units and setups, you can simply farm a specific raid boss to get the medals and just exchange them for the item that you need in the shop.

If you have the units but are not strong enough to solo brutal difficulty, try it in high difficulty instead. Otherwise, farming brutal difficulty with other players will be the best option.

She's able to solo since she has regen and a damage absorbing attack. Turn off her LB, self buffs, and Constricting Cleave so that she starts turn 1 with Revitalize.

For her VC, it can be Flash of Insight, Echoing Screams, or Howl of Ferocious Blaze, Ifrit.

As for armor, any high SPR or magic resist equipment will be needed to survive.

Soloing with Yuna is definitely doable, but it's quite a gamble since it heavily relies on her Aeon bond counter ability. She's able to self-heal, but this can end up causing problems of not casting fast enough or not enough actions to solo.

Be sure to turn off her Limit Burst so that she starts the fight with Revitalize and pick up the relevant damage modes from Bahamut esper.

For the extra equipment slot, you can give her Luminous Armlet, Galmia Coat, or Soul of Thamasa is fine.

Elena can solo Diabolos too, but not "full-auto". Her only issue is that her AI will not use Drain Evocation even when she's low. Since doing it semi-auto like this is arguably slower, it's better to do it with other players instead.

Make sure to also equip Illusory Bells and turn off her TP abilities and Limit Burst so that she starts the fight with Revitalize.

Little Leela (Halloween) can solo Golem with only her Limit Burst turned off. Will need good levels on Typhon VC and esper though.

Cloud can solo Siren with Soldier (FFVIIR) or Ranger sub job. Just make sure to turn off the high AP moves like Barrage, Blade Burst, and Limit Burst. With Illusory Bells equipped, Cloud won't start the fight with other buffs, so there's no need to turn off SOLDIER's Honor or Punisher Mode.

For the last equipment slot, equipping more offensive gear like Shinra Bangle can be fine but may end up relying on more Reflex proc. Knight Armor can help him survive more, or White Marshmallow Miniature to reduce sleep chance, but it's not crucial.

Scorpion Sentinel recommended having Lightning ATK and Slash ATK nodes, while water killer isn't necessary. Unfortunately, Odin might not be enough for solo since he ends up struggling with damage, but may be doable in high difficulty.

Accuracy Up, Hate Up, HP Debuff Res+999%, SPR Debuff Res+999%, AGI Debuff Res+999%.

Esper

Accuracy Up, HP Debuff Res+999%, AGI Debuff Res+999%.

Esper

CT Change Nullified, Accuracy Up, HP Debuff Res+999%, Slash Res Debuff Res+100%, All Element Debuff Res+100%.

Esper

CT Change Nullified, Accuracy Up, HP Debuff Res+999%, AGI Debuff Res+999%.

Dragon