What I'd try to do is read a FAQ or view the bossfight on YouTube.

i tried but they dont help.

Hm, try studying his pattern of attack and go with the flow, I guess. Either that or pray. Sorry if I'm not helping you a whole lot, here.

i know his attack patterns its who he attacks.

Hacks? X3

never.

XD

not that i even can

Lol, welp X3

while i've never played that, i can suggest what i'd do on any other game. go back a bit and try to get stronger if you can level up, do so, if it's power ups, look for any you may have missed, and stock up on any items that might help

i havent played for about 3 years.im maxed out on revival items cuse its the only usefull.its that he regenerates a ton of health each of his turns.plus he thinks your so weak that he will revive your fallen allys.

even smaller items that seem insignificant can make a big difference when used right. perhaps there's some way to prevent him from regenerating, and if your allies are revived often, perhaps use them as shields or use their biggest attacks

the smaller items only either restore stats or try to inflict statuse effects on your opponent but bosses are immune.useing them as ashield is to costly cuse his turn comes to fast.and no you cant stop the regeneration

any stat booster items might help. and what the guy posted below seems like that'd work, you just need to find the items for your party

easyer said than done.

hmmm ok so NINETAILs
Level99 Life Energy 92500
Fire 100% dmg Exp. 130000
Water 100% dmg Zenny 65000
Thunder 100% dmg FME 130000
Power Armor Shield Speed
400 90 95 140
Steal Drop
Build WE
Build Hyper Ancient Gun
Figure Token

Ability Effect
Tail Strike 2-hit attack against a single target.
Annihilator Hadoken Heavy AOE damage to the entire party.
Additional effect: Inflicts DOA 60% of the time.
Puncture Arrows Reduces WE of a single target.
Nine Fragments Inflicts 999 damage x 9 to a single target (total 8991pts of damage).
Regeneration Revives fallen party members with 25% of max HP.
Tera Fire Heavy Fire-elemental damage to a single target.
Tera Blizzard Heavy Water-elemental damage to a single target.
Tera Thunder Heavy Thunder-elemental damage to a single target.

First off make sure your characters levels are higher than 44 so like 46 or higher.
THE PARTY YOU'LL WANT IS STRICTLY THESE THREE
X must be equipped with Guard buster mmIII ,combat absorber, and Balt. Fm's cutting edge, and 3 LE+1000 immunity 49<65
Massimo eqipped with Beast lancer, generator, power charge.Fm's SMF fragment B , neutralizer -30, immunity 50<70
Marino equipped Beam dagger, hawkeye, and oil can. Her FM's speed +10, analyzer, LE +1000. Immunity 42>40
be sure to have many Life gains and all life gains when going into battle.
THIS IS THE WAY IF NOT HYPER MODE

the only force metal i have of that list is the sfm fragment.i only have beast lancer.i have turbo buster for x and beam dagger