Spells Sets And Trusts For Omen Mid And Mega Boss?

erratic flutter
paralyzing triad
barbed crescent
delta thrust
tenebral crush
barrier tusk
fantod
sickle slash
tail slap
heavy strike
saurian slide
diffusion ray
empty thrash
glutinous dart
thrashing assault
sudden lunge
nat. meditation
cocoon
occultation
magic fruit

took saurian slide for the -25% attack down to hopefully reduce threat from carousel spam and mighty strikes. maybe have to unbridled wisdom when he MS and reapply MG + harden shell.
was also considering paling salvo for the bio but it's only -10% and i'd have to ditch king of hearts/koru for a RDM like arciela who doesn't Dia.
is occultation even worth setting with the amount of AoE?

Sylvie (UC)
King of Hearts
Ulmia
Qultada
Monberaux

was considering to drop qultada for a tank trust, maybe Ark EV or Ark HM for the full hate reset so he doesn't go after squishy trusts.
maybe King of Hearts for Selh'teus as a MP battery? can't estimate how well monberaux can keep up healing under high AoE pressure.

erratic flutter
paralyzing triad
barbed crescent
delta thrust
blazing bound
quad. continuum
fantod
sickle slash
tail slap
heavy strike
sinker drill
diffusion ray
empty thrash
glutinous dart
thrashing assault
sudden lunge
nat. meditation
molting plumage
occultation
magic fruit

due to the buff abrsorb i suppose it's saver to refrain from mighty guard and marches so i went for dual wield spells for 35% from spell traits.
+4 from eabani earring and +5 from suppanomimi you looking at 44% DW + 30% from haste2 = 74% attack speed. if you have it could add reiki yotai or adhemar's jacket +1
for 81% but i prefer full malginance.
should still be able to self SC CDC->CDC about 75% of the time with 74% attack speed. there is no dispel in this set so you 100% rely on trust dispels.
tizona users avoid expiacion at 3000 tp, if mp management permits it maybe naegling/kaja sword and savage spam works as well.
almace guys shouldn't CDC at all and go for expi/savage instead.

Ygnas
Arciela
Koru-Moru
Selh'teus
Ajido-Marujido

again debating to drop a trust (most likely ajido-marujido as both koru and arciela alread can dispel) for a tank like Ark EV.
avoid monberaux, if he uses his all stat buff your trusts potentialy have to dispel thru 7 buffs befor they reach the important ones.

erratic flutter
paralyzing triad
barbed crescent
delta thrust
barrier tusk
fantod
sickle slash
tail slap
heavy strike
cocoon
diffusion ray
empty thrash
magic fruit
thrashing assault
sudden lunge
nat. meditation
tenebral crush
occultation
glutinous dart
saurian slide

basically same set as glassy craver, saurian slide more for the extra HP, same for glutenious dart/barrier tusk (max hp boost) so you have a slightly bigger pillow in case you don't turn quick enough.
guess you could drop paralyzing triad for something else as focusing on skillchains seems risky due to pain sync? maybe for embalming earth (attack bonus, +25 attack when /war).

Sylvie (UC)
Ulmia
Koru-Moru
Monberaux
Selh'teus

monberaux seems a good choice, Mix: Samson's Strength could protect your important buffs from trinary tap.