I've fought that cock sucker about 40 times. I did a challenge to see if i could kill him with only reflects for another user, and that was 31 of them. But the other 9 times, hardest boss fight in any game for sure, especially on fes. In p3p i can get my rhythm going so it's a little easier but still. Nyx is a slimy cocksucker on hard

Nyx is painfully unfun to fight, this is a normal occurrence unfortunately.

I ended up painfully grinding to 99 and fused Lucifer and Satan for Armaggedon. At that level with my gear and personas, I solo'd Nyx up until the last stage and used Armaggedon.

Continually fuse Abaddon until you get him with a heart item. Register him immediately before he gives it to you, then re-buy him again until you have 4 copies. His heart item nulls all status effects. Also, buy as many homunculi from the shop in Paulownia mall as possible.

i was actually a little higher level but it shouldn’t matter too much. If u have trouble usually just overleveling to around 85 or 90 should be a good fix. fusing messiah trivializes this boss too

I was around that level when I fought, don't be afraid to unload all those full heal items you probably have been hoarding, use the tactics menu when necessary and you should be fine until the end of the last phase.

Portable or FES?

My comment might be late but here goes.

You can beat nyx at that level but it's gping to be a lot easier if you grind up to around 75 and make personas around that level.

Now, when talking party composition it's pretty easy. I may be wrong, but in my experience, Nyx is by far the longest mandatory boss fight in the series, so you're in for a war of attrition. I would advise against taking Mitsuru or Akihiko. Mitsuru spams mind charge, if you didn't know in P3 and P3 only, mind charge only doubles the damage of magical attacks rather than multiplying it by 2.5, this means using mind charge then bufudyne would do the same amount of damage as just casting bufudyne twice but for more sp, since you're playing FES she's going to spam mind charge and run out of sp before the halfway point. Akihiko's debuffs last for 3 turns, but for every one of your turns, Nyx gets 2 meaning those debuffs cost 24 sp and are active for 1 turn especially since Akihiko's turn is normally last in the party. I recommend a healer, either Yukari or Ken, they're both fine here as long as you only set them to heal. Then you have a choice of tank, Koromaru or Junpei, again you can choose either one and they each have their pros and cons. For pure health and tankiness, choose Koromaru, for less tankiness for more damage, choose Junpei. Unless you double up on healer or tank your only option left is Aigis which I recommend if only for her buffs which last between Nyx's phases unlike Akihiko's debuffs.

Go all out on item usage, if you don't have a ton of recovery items don't over-extend before the final phase. But I must tell you, on FES revive items are a MUST here because Nyx will cast moonless gown almost every turn which is why the boss is so long. You cannot attack without dying while moonless gown is active and because of the way the command menu works, your party members will attack and die.

Same thing happened to me. I beat his death form twice but I was lvl 83 so I was good.

I... well... I hit it with Armageddon... sorry.

Helel + satan =profit

elemental break.

I saw somewhere that the boss uses charm and got Lovers fused weapons for everyone

Final boss can be cheesed if you have the fusion spell Armageddon and wait to deploy it at the opportune time.

I’m not recommending you do this, I am letting you know that if you’re about to lose a 40+ minute boss fight you might be glad to be able to pull the ripcord.

Make sure that everyone has Null Charm, either as a Persona skill or from accessory (Narcissus' Heart item). It would also be good to cover the weaknesses of your teammates by giving them weapons with appropriate resistances (obtained by fusion in antique shop). Apart from that, nothing in particular.

just use matarukaja and a strong persona

Go to the bathroom before the boss, it’s a long one

First get your team to the Mid 70s, that should be enough. Maybe 80.

Now i recomend your team, I recomend A healer/suporter, a phys attacker and a magic attacker (Personaly i used junpei, yukari and aigis).

Next is the MC, Fuse the highest level personas available and make extra sure thry are imune to death/holy. You DO NOT want to be insta killed mid battle.

As for the battle itself, Use fuukas scan every single time he changes phase, this is the most important part. Because if you dont, your party members might just spamm attacks nyx nulls

Avoid using debuffs. Nyx gets 2 turns and that somehow makes the debuffs last shorter, focus on purely buffs instead.

I dont recomend using Armageddon, it just really destroys the challange, and fun, of this battle.

Get a back up persona with mediarahan/salvation if something goes horribly wrong. Tetrakarn and makarakarn help too

Well presumably you mean isshin, it depends where you are failing at, if you can post a video of an average attempt you can get better feedback

Phase 1 is fairly easy. He swings his sword and has very limited moveset. You can either deflect his ashina cross or run away to the left and he'll miss and you can hit him. He has a sweep you can jump on his head.

Phase 2 is the real challenge of the fight. He throws you a curveball and now has a very diverse moveset and punishes you for not knowing it. His spear has some serious reach and between the slower spear attacks and faster sword followups, you gotta be on your toes to deflect properly or he's gonna knock your ass on the ground and punish you. You can dodge his overhead jump slam he does with his spear to get a hit in. When he does the jump back spear attack you can dodge forward and get 1 hit in and then prepare to deflect

Phase 3 is phase 2 but with the benefit that he does does lightning. That's good. Reversing lightning on him stuns him and does massive posture damage and if you're lucky, he will spam the attack enough to where phase 3 can be shorter than phase 1. If you're unlucky or refuse to reverse lightning, it's phase 2 all over again

Look up vids on how to defeat him, no shame in that. It’s akin to a boxer studying his opponent’s previous fights. Thats how I figured out how to beat him. Realized my approach was wrong, he was still a bitch to take down but I did it!

Have you gotten to his third phase?

Have you tried killing the final boss?

There is 3h video on YT analyzing his moveset.

Watch the part that covers phase 1 then try to spot different visual clues as you are playing.

I had a very hard time connecting the visual clue with the reaction as I just did not know what to look for exactly.

When you already know his body language the rest is just a bit of practice and consistency

Awesome honestly lost a bit of a faith I could do it myself at first but after coming back from a good night's sleep with a clear head it only took me a couple more attempts after struggling for a good while beforehand.(Like over a week or so of failure)

Nice job dude! I beat it last night MY GOD it was hard.

One of the best feelings lmao. most of my friends are actually into bullet hells so it took them a small amount of time to beat it but after a few hours i managed to do it and it felt so nice

That took me much more than 5 tries and i couldnt even ragequit because that would set me back to like an hour worth of prior phases lol

That’s the reason I didn’t ragequit either. I thought “oh no do I have to do all the phases again”

Octoslash ruined my life when I almost had him beat. Really loved these sets of boss battles

You're scared because you fear he's going to break out, right? I fear that too, but I'm ready for if he suddenly starts talking directly to the player at any point during the game.

This took me so many hours the first time honestly.

In the case of the vanilla final boss? Same way I beat most bosses. Beat on them until their HP reached 0. My preference was to deal the final blow with Messiah, appropriate to the boss' namesake in Gnosticism.

It was a 4 hour struggle the first time. Because I was really bad with time management, Morgana and Igor were the only confidants I had maxed, so I didn't really have any good healing or revive items. So each time I went through the fight it was a war of attrition as to what would crack first, my SP or Yaldaboath's HP. And considering it took I think 18 tries to beat him, I think you know the answer. It was much easier the second time since I knew what I was doing by that point, and I expect it to be extremely easy when I get to it at the end of my third playthrough. Because this time I have Satanael, and have had him since like halfway through the first palace.

Idk I didn't have any problems. Just usual buffs and charge then ded

Hassou Tobi'd his ass

I was over leveled. I had the auto-teamwide buffs equipped. Brought Ryuji, Ann, and Makoto (with President’s Insight equip). I debilitated Yaldaboth, then I kept charging and concentrating to do as much damage a possible. Guarded and healed when I needed to and defeated him before he could bring out the 3rd arm.