Nuruko/Labyrinth of Chaos

Nuruko is a Boss monster in the Labyrinth of Chaos

Attacks

 * Tentacle Storm - 4 Random Foes, Physical Attribute
 * Tentacle Waltz - 4 Random Foes, Pleasure Attribute, Slimed (75%)
 * Apoptosis - One Foe, Auto Hit, Demise Attribute
 * Purifying Light - All Foes, Auto-Hit, Holy Attribute, Ascension (10%)
 * Demon Ice Burial - All Foes, Auto-Hit, Ice Attribute, Freeze (10%)
 * Demon Thunder Burial - All Foes, Auto-Hit, Lightning Attribute, Shock (10%)
 * Universe Zero - 9 Random Foes, Auto-Hit, Demise Attribute
 * Chaos Drive - The World, 3 Turns Timestop
 * Zero Shift - All Foes/All Allies, Auto Hit, Dispel Foes, Resets Elemental and Stat Debuffs on Allies
 * ???? - One Foe, Auto Hit, Untyped Attribute, Current User Missing HP, Learnable
 * Unfathomable Nightmare - 4 Random Foes, Auto-Hit, Pleasure/Nightmare Attribute

Strategy
As a Labyrinth of Chaos boss, Nuruko is an extreme step up even amongst her peers. All of her attacks are auto-hits, use varied attributes including chaotic ones, and deal a lot of damage. The defensive strategies are a requirement, and combining them is the sole way to hold against her. Status effects are ineffective.

On the offensive side, lightning and sonic spells are the way to go. Focus on high damage, and cross your fingers that she doesn't use Chaos Drive.