Bosses - mahjerion/Craft-to-Exile-2 GitHub Wiki

The Invoker is an Act I boss that always spawns at Level 15.
He is found in the Overworld and Overworld Mirror dimensions in vanilla Woodland Mansions (not modded wood varients). He can also be fought by doing the Gateway of the Raiders.

The Wither is an Act II boss that always spawns at Level 30.
You can summon it by building a T shape with soul sand and then placing three wither skeleton skulls on top.

The Eel is an Act III boss that always spawns at Level 35.
You can find it in the Deep Ocean biome in the Overworld and Overworld Mirror dimensions.
The Mother of the Maze is an Act III boss that always spawns at Level 35.
You can find her in the Overworld and Overworld Mirror dimensions, she has a 0.5% chance to spawn with Anglerfish in the Deep Ocean biome.

The Ghost of Captain Cornelia is an Act III boss that always spawns at Level 40.
She is summoned by using the Shell Horn which can be obtained by killing the Mother of the Maze or completing the Gateway of the Ice Maze.
The Summoner is an Act IV boss that always spawns at Level 45.
He can be found in the Everbright dimension's Blinding Dungeon.
The Alchemist is an Act IV boss that always spawns at Level 45.
He can be found in the Everdawn dimension's Blinding Dungeon.
The Starlit Crush is an Act IV boss that always spawns at Level 55.
It can be found in the Nature Dungeon in the Everbright dimension.
The Arachnarch is an Act IV boss that always spawns at Level 55.
It can be found in the Poison Dungeon in the Everdawn dimension.

The Ender Dragon is an Act V boss that always spawns at Level 55.
You can find her by entering The End.

The Void Worm is an Act V boss that always spawns at Level 60.
It spawns randomly in the end.

The Warden is an Act V boss that always spawns at Level 65.
It spawns in the Deep Dark biome in the Overworld and Overworld Mirror dimensions.