Thorium Mod Wiki
BeholderHardmode exclusive
TypeFlying Enemy
EnvironmentThe Underworld
AI TypeBat AI
Damage20 / 40 (Melee)
30 / 60 (Ranged)
Max Life50 / 125
KB Resist80% / 82%
Inflicts debuffDestabilized.pngDestabilized
100% chance
Debuff duration2 seconds
Debuff tooltipYour existence is fading in and out

The Beholder is an enemy summoned by Coznix, The Fallen Beholder. They fly above the player and fire damaging red lasers periodically which inflict the Destabilized debuff during Expert Mode.


  • Now are only summoned when Coznix is above 35% health.
  • Introduced.
Characters: Mud Man.png Pre-Hardmode Enemies • Glittering Golem.png Hardmode Enemies • Snow Singa.png Event Enemies • The Grand Thunder Bird.png Bosses
Myna.png Critters • Diver.png Friendly NPCs • Wyvern Pup.png Familiars