Stygian Onslaught
Stygian Ends in
Stygian boss guide cards

Chimeric Winged Lion: Power Overwhelming
Insider's TLDR
Stygian.moe
• At the start of battle, the enemy deploys a 40U Electro Shield. If the enemy is under the effects of Radiance: Stellar Glimmer, when it prepares to release an Electro shockwave, 16U of its Shield will be removed, and it will drop 6 Electro Elemental Particles.
• When the Shield is broken, the enemy will take True DMG equal to 100% of the Stellar Glimmer DMG + 30% of all other DMG taken during the shield-breaking process, and will be stunned for 13s
• During this time, its Cryo and Anemo RES are reduced to -120%, while all other RES are reduced to -60%. Afterward, the enemy creates an Anemo vortex and attempts to pull in and absorb 5 Anemo Orbs on the field to restore its power. If the enemy failed to absorb 3 Anemo Orbs, it will become stunned.
Boss Trait
Thundercall: Sturdy Shield
Affected by the Ley Line Disorder, at the start of battle, the enemy draws upon the power of its Electro head to generate a durable Electro Shield to protect itself. At intervals, the enemy's two heads will work together, channeling Anemo power into its Electro greatsword and unleashing a large AoE Electro shockwave. At this moment, if the enemy is under the effects of Radiance: Stellar Glimmer, the elemental disruption will cause a backlash and damage its Shield. After breaking the Shield through Elemental Reactions, the enemy will become exhausted, stop attacking, and enter a stunned state. At the same time, its Cryo RES and Anemo RES will be greatly reduced, and it will take a large instance of backlash DMG based on the amount of damage blocked by its Shield. Stellar Glimmer Reaction DMG will increase the backlash DMG the enemy takes when its Shield is broken.
Galeforce: Fierce Assault
Affected by the Ley Line Disorder, during battle, the enemy draws upon the power of its Anemo head, flies into the air, and rapidly circles in midair while firing Gale Projectiles. After circling, the enemy creates an Anemo vortex and attempts to pull in and absorb Anemo Orbs on the field to restore its power. After absorbing enough Anemo Orbs, it will take to the air again and perform another circling attack. Anemo Orbs can be destroyed by Hydro / Pyro / Electro / Cryo DMG. You can also place the enemy under the effects of Radiance: Stellar Glimmer, preventing it from absorbing the Orbs. If the Anemo vortex disappears before the enemy has absorbed enough Anemo Orbs, it will immediately become stunned. At the same time, its Cryo RES and Anemo RES will be greatly reduced. A product of bio-alchemy, one of the discarded synthetic magical beasts. Under the extreme distortion of the Ley Lines, its ability to command the elements has grown increasingly violent — thunder and storms roar beneath its control, leaving nothing alive in their wake.

Veteran Wind Operative: Treacherous Blade
Insider's TLDR
Stygian.moe
• Freeze RES: 90%. Its interruption resistance is greatly increased, it cannot be interrupted by character skills, and it possesses numerous rapid-movement abilities.
• When it has no Shield, it will use “Hunt Down” and generate a Shield with durability equal to 22.5% of its HP. When the Shield is broken, it loses an equal amount of HP.
• When the Shield is generated, all characters are inflicted with 27100 / 29028 Bond of Life. While the Shield exists, an additional 8130 / 8708 Bond of Life is applied every second. (N5/N6)
• The boss will use 2% max HP to perform the "Hunt Down" attack, dodging this will prevent the boss from regenerating 5% of its health. Additionally, the Jean cheese no longer works.
Boss Trait
Rapid Kill
Consumes a certain percentage of HP in combat to use Hunt Down: When this hits a character, it restores a certain percentage of her HP and attaches a Bond of Life to the character hit. While Bond of Life is active, the affected character will take continuous DMG. Characters with Bond of Life attached will take increased DMG from this attack.
Bloody Pursuit: Treacherous
Affected by the Ley Line disturbance, the foe's interruption capabilities and interruption resistance are both greatly increased. When her stance breaks in midair, she can immediately teleport away and quickly regain her footing. When preparing to use Hunt Down, she will enter the Bloody Pursuit state, creating a Shield to protect herself. While the Shield is active, the foe will continuously attach Bonds of Life to all characters. After the Shield is broken, the foe will take immense DMG.

Knuckle Duckle: Armored Arsenal
Insider's TLDR
Stygian.moe
• Put on a shield with all RES 210% and spawn 5 ducks, each worth 25% of the bosses HP with 10% all RES. To destroy the shield, either kill all 5 ducks or trigger EC/LC 20 times. The ducks take +150% increased EC/LC damage. Each duck reduces the shield of the boss by 20%.
• After you kill all the ducks, the boss will take 5x 5% HP as self damage and enter the down phase with -110% RES to electro, -50% RES to other. If you trigger EC/LC 20 times before you kill the ducks, the boss will take only the damage recorded in the shield phase.
Boss Trait
Heavy Duckstruction Mode
Deal Electro-Charged or Lunar-Charged DMG repeatedly, or simply deal enough damage to destroy the stamping devices to disrupt them. Disrupted devices will lose control and crash into the Knuckle Duckle, dealing a certain amount of damage to its Ward. Destroying the Nemesis's Ward this way will cause it to exit Heavy Duckstruction Mode and become incapacitated from Overloaded. This will also greatly reduce the Nemesis's Electro RES for a certain time.
Low-Resistance Stamping Devices
Due to the effects of the Ley Line disturbance, the stamping devices become more resilient — deal more instances of Electro-Charged or Lunar-Charged DMG or more damage to these devices to disrupt them. Electro-Charged or Lunar-Charged DMG dealt to stamping devices will be more effective, and when they lose control and crash into the Knuckle Duckle, the damage dealt to the latter increases based on the total damage taken by the devices.
Fast Frequency-Hopping System
Due to the effects of the Ley Line disturbance, the stamping devices become more resilient — deal more instances of Electro-Charged or Lunar-Charged DMG or more damage to these devices to disrupt them. Electro-Charged or Lunar-Charged DMG dealt to stamping devices will be more effective, and when they lose control and crash into the Knuckle Duckle, the damage dealt to the latter increases based on the total damage taken by the devices.
