| Desktop-Only Content: This information (or parts of it) applies only to the desktop version of Terraria.
The Brain of Confusion is an Expert Mode accessory item from the Treasure Bag dropped by the Brain of Cthulhu. Upon taking damage with the Brain of Confusion equipped, it will appear to float into the air and nearby enemies may become confused for 3-5 seconds (longer if the player received more damage, shorter if they are further away). The chance of enemies becoming confused (assuming they are not immune) is 60%, +0.4% per point of damage.
- The effect can be activated by any form of damage including damage taken by traps and thorn bushes.
- It is not affected by dye.
- Many people consider the Brain of Confusion to be a major disappointment, as opposed to its Corruption counterpart, the Worm Scarf, which reduces damage taken by 17%. Despite this, it can still shine in certain moments, such as during Invasions, or for preventing the player from being swarmed by pests such as Cave Bats.