So yeah decided to do 4 Berserkers on the GBA version.
Around level 40 was sufficient to beat the Sandworm.
Sol Cannon wasn't much of a problem though I did come close to dying.
The 6 Puroboros enemies are still annoying.
World 2 isn't difficult at all
Pyramid of Moore can be a bit annoying
Rift sucks due to the lower running away rates, and even Chicken Knife doesn't want to help me there. Early bosses aren't a problem though.
TwinTania was close since I forgot to equip Coral Rings. In fact I only had one.
Necrophobe.....let's just say my levels are 45/43/44/45. I barely managed it after multiple attempts. Grinding in the Rift is out of the question really since I can't survive against Iron Giants. Maybe I should attempt to steal some Mirage Vests at the Shrine...
Exdeath...I got to his SPAM METEOR phase before he murdered everyone. Surprisingly avoided White Hole completely. But his attacks just hurt too much. Might go get those Mirage Vests to survive Iron Giants.
Edit: And shortly after I posted I tried again for no reason, and got to Neo Exdeath. Faris and Lenna are dead though while Butz and Krile are at full HP. Faris has the Chicken Knife though. And Almagest pretty much deals around 3000 damage, which at my level is more than what I have.
TIME FOR LEVELING!!
Edit 2 [June 7th]
So spent all day grinding away for many, many things.
I got 4 Mirage Vests (7 Total at least, 2 of which I lost because my Berserker decided not to run away)
4 Thor's Hammers (1 from the chest in the castle, 3 from Rare Steals on Death Claws. I got more but again, couldn't run away in time)
4 Aegis Shields (1 from chest in the Forest of Mu, and the other 3 from Gorgimera steals. I actually have 3 extras too)
4 Bone Mails (1 from Drakenvale Mountain, and 3 from Necromancers in the Void)
And Butz is currently level 61 while the rest are at 59 or 60. Still cannot defeat Neo Exdeath, BUT I'm getting somewhat close. Specifically, I've hit the point where there's only 1 part left. Then he double Almagest'd me. Current strategy so far.
Butz, Lenna, and Krile wield Thor's Hammer from the back row to mitigate the physical damage. Faris uses the Chicken Knife since she is the best candidate, has an easier time hitting compared to the Hammers, and deals over 5k a pop. Everyone is equipped with an Aegis Shield, Crystal Helmet, Bone Mail, and Reflect Rings.
So pretty much my reasons and also concerns
Aegis Shield: Negate Petrification and 33% chance to avoid spells, including Almagest. I believe this also includes Vacuum Wave sometimes? Either that or I'm just getting lucky with the Physical Evade.
Crystal Helmet: Nothing better for Berserker's really..Except maybe the Thornlet but the HP Sap would make things difficult since I have no healing.
Bone Mail: I WOULD use Mirage Vest for at least one guaranteed physical attack dodge, but Grand Cross is one of the 3 moves that ends these battles for me, so I need to remove a lot of the ailments. I just wish the Fatal/Toad/Mini statuses were included...I also realized THIS is why Almagest is dealing about 3k damage, since it's Holy Elemental.
Reflect Rings: I can't outdamage Neo Exdeath before the spell caster part is gone, and since I can't just Odin it, I need to reflect it's spells. This also has me relying on a heavy bit of luck. I NEED that part to cast Delta Attack and have it be reflected onto Almagest part to instantly kill it. This does however provide some extra damage as well due to the spellcasting.
Since at the moment ~60 isn't enough, I think I'll try again at ~65. Least Berserker has decent HP...