Darkness of the Abyss

Stage mechanism

Star afflatus units gain 20% stats increase in ATK, DEF and HP
The boss takes 75% more Genesis DMG.
It self-cleanses all [Neg Status] at end of turn.
If it didn’t take damage in one turn, it will gain 2 layers of
[Sturdiness]

.
Every 2 rounds, the boss will aim at 2 units with the highest HP percentages left and inflict 4 layers of
[Frostbite]

.
Its ultimate will inflict 5 stacks of
[Frostbite]

immediately, cause whole team to be
[Freeze]

.
The tentacles will attack the unit with the highest HP percentage left at turn end, and give 1 stack of
[Sturdiness]

to self and the boss. If at 4 moxie, they will cast Ultimate and inflict
[Freeze]

on the target instead.
When a tentacle is killed by your attacks, the boss will take Genesis DMG equal to 15% Max HP.
When DotA’s Eureka is full, it activates a shield phase, where failing to destroy the shield within 3 rounds leads to the removal of all buffs from your team and a powerful AoE attack followed by
[Freeze]

.

After casting their Ultimates, DotA and its Tentacles gain a buff, which cannot be dispelled, that reduces incoming damage.
4 stacks of
[Frostbite]

will be applied per attack instead of 2.

Prioritize Genesis DMG & Star units since they deal more damage.
Avoid relying on debuff application due to DotA’s end-round cleanse.
Attack the boss every turn to prevent it from gaining
[Sturdiness]

.
[Frostbite]

is a debuff that can be cleansed and immunity to it.
[Frostbite]

stacks can be removed by taking active actions twice per turn.
When DotA in shield phase, focus on breaking its shield with all your attacks instead of trying to survive.

Preventing the execution of most ultimates is key by using character with
[Silence]

or Moxie reduction skills.

Lucy

Vila