Can be accessed by defeating Valerion
The flames of the cultists protect Nebula's domain, but when stabilized they pave the way to the Archmage's wrath.
Twilight Archmage

Dungeon Clear
- Collect 3 Souls > Bring them to Mithrion
- Guide them to respective coloured wool after teleport
- Nebula's Arena opens
Boss Phases
100% to 75% (Phase 1) | 1: Nebula jumps up and slams the ground, dealing damage to those in close proximity. 2: Nebula dashes towards the player and slashes, creating three rows of fire pillars. 3: Nebula slams the ground, dealing damage to those in close proximity. 4: Nebula leaps to the player, slamming down and creating a ring of fire around the impacted area.
75% (Phase 2) | Nebula summons voided pillars around the arena that deal damage to those who stand in them. These pillars also summon shadowflame skulls.
75% to 40% (Phase 3) | Nebula slashes, dousing the arena in fire pillars and summoning a mine that follows the player.
75% to 40% (Phase 3) | Nebula summons several shadowflame skulls that bounce around the arena, dealing damage in a small area upon contact with the floor. In addition, Nebula fires axehead projectiles at the player.
75% to 0% (Phase 3/ 4) | Nebula teleports to the player several times, each time leaving behind a source of axehead projectiles. On the final teleport, Nebula deals damage on the floor in a large radius.
40% (Phase 3) | Nebula summons voided pillars around the arena that deal damage to those who stand in them. These pillars also summon shadowflame skulls.
40% to 0% (Phase 4) | Nebula slashes, dousing the arena in fire pillars and summoning a mine that follows the player. In addition, Nebula fires axehead projectiles in all directions.
40% to 0% (Phase 4) | Nebula dashes into the player, creating voided projectiles perpendicular to the dash every step of the way. These projectiles accelerate after a short time.
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Dungeon Enemies
Tips and Tricks
- N/A