Bosses
15 bosses, weakest first. Each has its own article with where to find it, how to prepare, and what it drops.
Three are optional superbosses far above the main story: The Freeze, The Ember and Kaeleth, the Last Vessarim. No quest makes you kill any of them. Each guards something nothing else carries.
The six Dormants of the generated runs are bosses too, met at every tier with moves that grow by tier. They are listed on the run pool page.
Lord DravenLevel 25 · 140 HP
The King CrabLevel 40 · 170 HP
The Sewer KingLevel 54 · 140 HP
King GolemLevel 61 · 260 HP
The Last ArchivistLevel 74 · 200 HP
Frost DragonLevel 75 · 420 HP
The Old Keep RevenantLevel 84 · 600 HP
Ember DrakeLevel 95 · 350 HP
Pyrelord KravashLevel 104 · 520 HP
The Hollowed OneLevel 107 · 720 HP
The FreezeLevel 151 · 2,850 HP · superboss
The EmberLevel 156 · 3,000 HP · superboss
Kaeleth, the Last VessarimLevel 176 · 1,500 HP · superboss
the Undying ChampionLevel 200 · 3,000 HP
RexLevel ??? · 60,000 HP
The Eventide Colosseum
Deep in Vesperion, the Colosseum pits you against three arena beasts. They are the toughest fights in the realm. They give no XP and drop nothing, and losing only puts you back outside the door.