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Pre-Boss are the minions that One-Star Bosses and Three-Star Bosses summon during fights. They are always spawned in pairs, and are boss specific. These enemies do not give Experience when killed. Three-Starred Boss Pre-Bosses have nearly the same amount of health as a One-Starred Boss. Pre-Bosses are not always from the same biome as their boss.
- Viking Skeleton (spawned from Skeletal Berserker)
- Skeleton (spawned from Death Knight)
- Boneblade (spawned from Champion of Doom)
- Spider (spawned from Darkspore Hurler)
- Mushroom Man (spawned from Mushroom King)
- Firefly (spawned from Golden Scarab)
- Bee (spawned from Dire Wasp)
- Fae Spider (spawned from Hungry Faterpillar)