Brain

The Brain summons a pet Zombie when used. It grants the Pet Zombie buff that lasts until the player manually cancels it by right-clicking the buff's icon, or dies.

It can be obtained from Golden Chests.

The Zombie also deals damage to the enemies like the Bat does.

The animation of the zombie when you fly has the same look as the Spectre Boots animation while flying.

If there is a ranged enemy attacking you while mining, the zombie will block all the shots if it is standing in the area its shooting.