Snow - Can equip him with a Sonic Knuckle for wind coverage as a backup, he can also use a water punch when he's not daring Gilgamesh to punch him in the face... Which is his most important part in this fight.
Primm - More important than I thought she'd be, she's my only reliable source of Earth Damage unless I want to put the Golem Staff on someone. Equip her with dual wield and a rune blade or (God Willing) Excalibur and a Trident, and she'll be able to cover Earth, Holy, and Water damage well.
Gilgamesh - Yo dawg, we heard you like Gilgamesh. But seriously, just have him keep using Wind Slash, with Vernard or Chiraejeden to cover the Fire Damage...
Ling - MP Battery with a backup AoE Raise, just in case. ... I hate to bring someone JUST to be an MP battery, but it's a long fight, and I really want to be sustainable.
What I'll be lacking in this fight is buffs. Refia will be healing every turn, and nobody else can spare their turn to do anything else either. Maybe see if I can't get some sort of Protectga on Ling somehow...
... Yeah, Trident and fire Katana on Primm will work well. That's Earth, Water, and Fire. Damn, one off from Earth Wind and Fire. No feelgood rock for me...
have to hit Gilgamesh with the elements covered up in this Plurk, so he only physically attacks you instead of murders your face with...something. and every certain percentage of HP lost he does the guaranteed death attack. I think is what I recall.
At 80%, 50%, and 30% HP, he will do 3 Things. Increase his DEF and SPR by 80%, AoE 500% attack that strips you of all your buffs, and Instant Death to 1 character.
HeartHoly