Boss Guide#

Main Story Bosses#

Doomsday Beast#

Strategy: Prioritize breaking the leg weaknesses to stagger it, watch out for its full-screen attacks and keep your healing ready.

Cocolia#

Strategy: In phase one, break toughness quickly to interrupt her skills; in phase two, watch for her freezing skills and pre-cast shields and cleanse. Physical Trailblazer and Natasha are recommended.

Phantylia#

Strategy: Prioritize clearing the Mara-Struck soldiers she summons to stop them from stacking buffs on her. Interrupt Phantylia’s charged skill through weakness break.

The Great Septimus#

Strategy: Dealing with The Great Septimus’s special mechanics requires specific characters or specific tactics. Watch for the full-screen attack when the phase transitions.

Weekly Bosses#

Echo of War — Destruction’s Beginning#

The weekly version of the Doomsday Beast. Drops Destruction path trace materials.

Echo of War — End of the Eternal Freeze#

The weekly version of Cocolia. Drops Abundance, Preservation and The Hunt trace materials.

Echo of War — Undying Divine Seed#

The weekly version of Phantylia. Drops Harmony, Destruction and Nihility trace materials.

Echo of War — Harmonic Echo#

The weekly version of The Great Septimus. Drops Harmony, Erudition and Nihility trace materials.

Simulated Universe Bosses#

Gatekeeper#

A common elite in the Simulated Universe with multiple forms. Weaknesses and skill mechanics differ with every run.

Kafka#

An elite version of Kafka in the Simulated Universe, specializing in mind control and DoT. Weakness types: Physical and Lightning.

Strategy: Bring a cleanse character to remove control states. Prioritize killing the teammate she has mind-controlled (when you can’t cleanse it directly).

Svarog#

Strategy: Break the mechanical arms first to free the grabbed character. Svarog’s main body is relatively fragile.

Argenti#

Strategy: When Argenti charges up, interrupt him with high-toughness-damage skills, or you’ll eat massive damage.

Elite Enemies#

Below are the elite enemy types you’ll meet across the worlds.

Ice Outworlder: Ice-type elite, specializes in freezing and slowing.

Flame Outworlder: Fire-type elite, specializes in Burn and AoE.

Devourer’s Shadow: Quantum-type elite whose attacks apply Entanglement.

Aurumaton Spectral Envoy: Imaginary-type elite of the Xianzhou, specializes in Imprisonment.

Dreamjolt Troupe members: The various stage-themed elites of Penacony.

General Boss Challenge Advice#

4. Keep your skill points healthy; don’t overspend

5. Use Techniques to gain an advantage before the fight

Weekly Boss Quick Reference#

General Boss Tips#

Simulated Universe Elite Bosses#

Main Story Boss Deep Dives#

Doomsday Beast Full Breakdown#

The Doomsday Beast is the first major boss of the Jarilo-VI arc, and the fight where many newcomers first learn why “weakness break” matters. It has Fire, Lightning and Wind weaknesses; before the fight, confirm your team covers at least two of those types.

• Phase one: the Doomsday Beast periodically uses an energy charge skill; during the cast its toughness bar flickers. Concentrating toughness damage here interrupts its Ultimate, and a successful interrupt briefly puts it in a vulnerable state.
• Phase two: below half health it enters berserk mode, attacking faster and summoning small Mara-Struck adds. The adds buff the main body, so clearing them beats tanking the extra damage.
• Notes: keep the team above half HP throughout — the phase-two full-screen shockwave hits extremely hard. Your healer should hold their Ultimate for the wave.

Cocolia Full Breakdown#

Cocolia’s weaknesses are Fire, Lightning and Wind, the fight has two phases, and her kit revolves around “freezing”.

• Phase one: she keeps summoning ice spikes and Everwinter Guardians. Ice spikes telegraph with red warning circles — dodge them by repositioning. The guardians shield Cocolia, so kill them first to interrupt her casts.
• Phase two: she enters her frozen state and casts a Frost Nova; you must break her toughness with a skill or Ultimate during the cast, or the whole team is frozen for a full turn. Bring March 7th or Natasha for cleanse and dispel.

Phantylia Full Breakdown#

Phantylia is the core boss of the Xianzhou arc, with very broad Fire, Lightning, Wind and Quantum weaknesses. Her core mechanics are “summoning Mara-Struck soldiers” and “charging her Ultimate”.

• Mara-Struck soldiers: she periodically summons soldiers, and each one on the field grants her a damage bonus. Ignoring them to burn the main body guts your damage.
• Charged Ultimate: light effects around her body telegraph the charge; hit her with high toughness-damage skills to interrupt, and she’ll stagger into a weakened state — the best window for your main DPS.
• Recommendation: bring a Quantum or Fire character so you always have a usable toughness-breaking tool in any phase.

The Great Septimus Full Breakdown#

The Great Septimus is the final boss of the Penacony arc, mechanically complex and demanding on team investment. The fight spans multiple phases, and each transition comes with a full-screen attack.

• Phase-transition protection: hold a shield and healing Ultimate before every transition. The full-screen attack is followed by rapid basic attacks — squishy teams lose members right here.
• Mechanics: The Great Septimus applies many debuffs; bring a cleanse character and use dispel at key moments.

Echo of War Deep Dive#

Echo of War can be challenged three times per week and is a major source of trace materials and relic leveling items. Each Echo of War is an enhanced version of a main story boss, with upgraded mechanics.

Echo of War Drop Quick Reference#

Weekly Boss Notes#

• You get three weekly boss tickets per week; they don’t stack, so clear them every week.
• Weekly bosses drop “Traces of Flowing Light”, exchangeable for trace level-up materials in the Xianzhou shop.
• Weekly boss difficulty scales with your Equilibrium Level; if you’re undergeared, just pick a lower Equilibrium difficulty.

Simulated Universe Elites and Bosses#

Elites and bosses in the Simulated Universe come with enhanced mechanics — they’re the weekly route to Planar Ornaments.

Elite Enemy Counters#

• Ice Outworlder: an Ice-type elite that spams Freeze and Slow. Bring a cleanse character or equip effect-resistance relics in advance.
• Flame Outworlder: a Fire-type elite that specializes in Burn and AoE. Burn is ongoing damage, so healing pressure is high.
• Devourer’s Shadow: a Quantum-type elite whose attacks apply Entanglement — entangled units take extra damage, so dispel it fast.
• Aurumaton Spectral Envoy: an Imaginary-type Xianzhou elite specializing in Imprisonment; imprisoned characters miss a huge number of turns.
• Dreamjolt Troupe members: Penacony’s stage-themed elites with all sorts of gimmicks. Check the weakness and skill notes before entering a new area.

Simulated Universe Boss Notes#

• Gatekeeper: weaknesses and mechanics are randomized each run — read its stat panel before engaging.
• Kafka: mind-controls your characters; when you can’t cleanse it, kill the controlled teammate to break free.
• Svarog: the mechanical claw locks down one character; break toughness fast to free them.
• Argenti: always interrupt his charge with high toughness-damage skills.

Universal Boss-Fight Takeaways#

Boss Rewards Summary#

Bosses are one of the main sources of character-building materials, and each type drops different things.

Higher-difficulty versions of bosses drop greater quantities and quality — when your investment allows, always pick the higher difficulty.