I give up. This fight is too much for me. Every 2 turns a full wipe of buffs and debuffs, also 24 billion heals. HP stopper on both enemies, one "weak" to magic, one to phys, gotta kill one to make the other lose their resistance to the respective other. 2 phases, second phase kills your stance and of course will also wipe your buffs and debuffs.
And on top of all of this, they stack permanent physical buffs, both damage and resistance. (aka anti phys)

I wonder if they even tested this. Earth has so little magic characters, most have 1 hit attacks only, and no matter how you twist and turn this around, the damage is just not there. Not like physical earth is much better, considering the main idea there is to have a backrow. (Wolf and lance girl need to take breaks)
The only hope for a 4 char team including Myrrus I have is if a pledge asks for a magic team. But part of me feels, for normal players the solution hasn't been released yet. Toova sucks way too much, and while Kuchinawa isn't bad, he can't solo carry this crap with permanently wiping buffs and debuffs. Doubt having his stellar would help here. What a massive difficulty spike this is.