How to beat the dark tower aery thing?

[Honorable_D]

You only get like 20 sec and those demon faces are super tanky + there is a second wave. I wasn't even getting close. I've already cleared multiple of those big aery.

What is the gimmick?

[darth.crevette]

Multiple ways to do it, depending on how far in the game you are.

Dark elemental break and Lucent Beam spam for the first wave, clas strike the second wave.
Or just Fire Careena CS cheese if you have unlocked her full plot (requires post-game though).

In both cases I recommend using Necromancer Julei for his +20% damage against Fiends passsive.

[Momo Kozuki]

Light Palamena with Glitter Dust learned and Consecutive Spell: Light/All + Null Silence+Knock-back Resistance equipped. The rest of the seed slots go into damage boost. Start the greater trial with both Elemental Break/Class Strike gauge full.

Immediately dash away from danger and have Palemena use Light Elemental Break then spam Glitter Dust on the head monsters. When first wave dies, wait for second wave to spawn so that all of them appears before using Class Strike to wrap up the fight.

Dark Julei and Wood Careena that have passives that reduces enemy's Def/M.Def at the start of the battle helps a lot. Since Wood Careena seems not to be a popular choice, bring a Val with Dark Shield + Provoke helps enemies to ignore Palamena casting spell from afar.

[Honorable_D]

Some good tips, thanks.

[INSANEcyborg]

This was my general plan for most aeries.

First, give everyone Extra CS ability seeds (you can buy them with Niccolo coins). They'll add to your class strike meter whenever you get mana, which is great because vessels have no cooldown in the aeries.

Second, pick a someone to class strike. Give them whatever vessel will do the most damage, and load up and ability seeds that increase CS damage. I've found a 20%, 30%, 30%, and 50%, but that last two only work at full health.

Then its just spam your class strike and focus on refilling the gauge asap.

[Aestrea]

Dark break + petrify is pretty much the standard if you are under powered. You can stack it up to 35% chance with the right seeds and class abilities and it basically bridges any level differences if you are attempting to do them under leveled. This works on every single aery including the fire one where they are immune to physical. Petrify (Stoneworks seed) is broken as hell.

[Doresh]

Is used Light Palamena to bind all enemies, then spammed Lucent Beam.
For extra fun give her the seed that lets her chain cast light spells.
You also probably want the one that makes light spells free during an elemental break.