Boss Overview ​

Custom Bosses have their own skills, phase transitions and exclusive loot. Find them in supported wave modes; Eclipse Bloom also has a guided encounter on the official Experimental Area 37 map.

The Sky Islands have a separate roster of lords and chiefs. See Sky Islands · Qinglan Archipelago and the island equipment pages for their locations, loot and stories.

Fog of War and Stealth ​

On raid maps, custom Boss models, gear and weapons hide and reappear with player vision. The Sandstorm Champion's sand clouds and eye lights follow vision too. After the Phantom Witch ends a stealth skill, she must still be in player vision to appear; entering vision does not end an active stealth skill early.

The Roster ​

• Dragon Descendant — 500 HP, mid difficulty. Drops: Crimson Dragon Helm, Flame Scale Armor, Dragon's Breath
• Skyburner Dragon Lord — 800 HP, highest difficulty. Drops: Dragon King's Crown, Dragon King's Scale Mail, Cloud Soar I, Reverse Scale, Inferno Emperor's Realm-Breaking Halberd, Skyburner Dragon Cannon
• Phantom Witch — 1000 HP, high difficulty. Blink + scythe + Curse Realm + summoning. Drops: Soulreaper's Requiem

Official Map and Boss Pool: Eclipse Bloom ​

• Eclipse Bloom — 7500 base HP. Follow Jeff's quest to Experimental Area 37, or encounter it through compatible Boss pools. Intact petals shield the core; break them individually with guns or melee to open safe gaps. At 60% health the crown unfolds and rotates; at 25% the core takes over. Every victory drops 1 Residual Sun Shield Shard. Death abandons an unfinished introduction, which can be accepted again. The map encounter appears on every raid during the introduction and on roughly 30% of Area 37 raids afterwards, at most once per raid.

When Do Wave Bosses Appear? ​

• Standard — At the start, the mode tries to move the Four Horsemen, Koko Koko, Dragon Descendant and Skyburner Dragon Lord beyond the first 20 candidate positions. Short pools, too few ordinary Bosses and player filtering can defeat that protection. The Phantom Witch is not excluded
• Infinite Hell — Weighted draws from enabled Bosses begin on wave 1, with no 20-wave heavy-hitter exclusion
• From Scratch — No Bosses for waves 1-5; waves 6-10 exclude heavy hitters (the Phantom Witch is not on that list either); full pool from wave 11
• Faction War — Dragon Descendant max 1/session, Dragon Lord doesn't appear, Phantom Witch in normal draw
• Blood Hunt — Same as Faction War; dead Bosses auto-replaced
• Black Market Duck Cup — All three are in the full boss pool, at most one of each per team: Dragon Descendant at 1500 power, Phantom Witch 500, Skyburner Dragon Lord 2000 (with triple health). You watch from the stands and they fight the other team's bosses

Boss Filter ​

Customize the pool via Ctrl+F10:

• Disable specific Bosses entirely
• Adjust spawn weights in Infinite Hell

Achievements ​

• Dragon Slayer — First Dragon Descendant kill (30K)
• Perfect Dragon Hunt — No-damage Dragon Descendant kill (200K)
• Kingslayer — First Dragon Lord kill (100K)
• Perfect Kingslayer — No-damage Dragon Lord kill (500K)
• Dragon Slayer Master — 10 Dragon Lord kills (600K)
• Dragon Descendant Collector — All Dragon Descendant drops (300K)
• Dragon King Collector — All Dragon Lord drops (500K)