are you talking about the first Neochu with the three minions in titan's trials?
Mark mission "can't we all get along?" has you fight another Neochu, it has 5 Picochus constantly that he'll keep respawning, you wouldn't think two more minions would make a big difference...
wasted two hours of trying to kill him today for the growth egg, without using death and trying to instant stagger chain.
I had neochu staggered TWICE in one round, and he still lived, obviously once he used pollen and screech that was it...
then I said **** it and used the death strategy
here's what I did (i'm NOWHERE near full crystarium, mines like 5,5,5,2,2,2)
Vanille (leader of course):
Belladonna wand (of course)
Tetradic Tiara (auto-tetradefense: vigilance at start of battle, increases success of DEATH)
Sprint shoes (auto-haste)
the other accessories two gave me ATB speed +10%
he wasn't "attacking" so I gave a random weapon
platinum bangles in every slot for +2000 HP
he makes a REALLY good sentinel-only character, the highest HP of everyone
forgot which weapon, it had the highest magic stat weapon and was at "Star" level
Adamant bangle for +800 HP
three platinum bangles for +1500 HP
my paradigm deck:
Vanille, Snow, Hope
SAB SEN SYN
SAB SEN MED
SEN SEN SEN
RAV SEN COM
RAV SEN RAV
used fortisol and aegisol before battle to have everyone buffed.
started with SAB+SEN+MED and kept spamming Death with vanille while hope heals Snow who was the only one getting hit by minions
when screech appears on screen I IMMEDIATELY switch to SEN+SEN+SEN, then SAB+SEN+MED continued spamming Death till I either Killed Neochu or Died, if you Die try again (took me 10 tries back to back)
if Neochu DIES from death, use Delta attack and mystic tower back to back on the remaining minions, these little ****s can still kill vanille or hope so keep Snow alive with combat clinic
that's the same strategy I used for Gigantaur and Adamantoise