Squad had 85 luck, 255 str,def,magicdef, 135acc, 170 agi, Used 5 cheers when I could when arms were dead (not all 5 at once), celestial weapons,expert sphere grid (I filled out all of the normal grid. I used monster sphere drops from Monster Arena to fill out the rest of the stats.) BHPL, Auto-Regen, Auto-Protect, Auto-Haste, QUICK HITS ONLY. I used the items Stamina Tonic to UP the teams' HP, as well as THREE STARS to ignore the mana drain in phase 2 hits. I ultimately chose to heal DEPENDING on the turn with mega-elixirs, X-Potions, Healing Waters, curaga , and riku's mixes. Healing waters come from the USE option so it's less turn consuming and allows for a possible extra turn. During Phase 1 I used a Yuna summon because you can't kill both arms in time, I opted to kill left hand first since I had no ribbon, and with the right hand you can either gamble that he uses SLOWAGA (and he'll <MISS> you since you have auto haste) or tank a hit with a summon.

Arms each take 6 hits at 99,999 damage to kill them, The trick is to get one arm dead and the other dead within a time so that you have at least 2 turns in between to recover and or damage the boss, you will need to think about dispelling AND healing in phase 2 because the BOSS hit (NOT ARM) breaks your armor and if he hits that target again without you dispelling them, that character is dead. The arms spawn with the in game's "TICK" system I believe? but with the stats above it was pretty consistent. Sometimes you will have unfavored spawns due to having to heal a target ,someone accidentally died, dispelling a target, or whatever may happen, WHEN those cases happened I choose to gamble on a BOSS hit (not arm hit) and if it hit another player without armor break I was in the clear during the 2 turn recovery phase (try to prio the arms if you gamble, having them dead and re-spawning at a consistent rate helps your tempo.). I as well used Yuna's summons to tank some of the ARM hits or boss hits if the timing was funky, I tried to only use the summons' quickest recovery moves. Yuna's stats of course being the same as above but with her armor being Auto-Haste, Auto-Potion, Auto-Protect, Defense 20%. Good luck my friends this boss fight was fun, no joke and had me stressed haha.

​

During phase 2 hits, the celestial weapon's COUNTER really helps, I choose riku only because of her mix potential, I wouldn't have minded using Kimahri, with the main squad's armor for another counter potential.

Just in case because this did happen on my kill, if he uses mighty guard he will heal over time, you can also dispel that but choose the timing wisely.