Delve/Eye of Affliction

The Eye of Affliction is a pre-Hardmode that spawns in place of the Eye of Cthulhu in corruption worlds.

Spawn
The Eye of Affliction can be summoned manually using a Rotting Eye at night. It also has a 1/3 chance of spawning automatically each night, following the same prerequisites as the Eye of Cthulhu.

Behavior
The Eye of Affliction has two phases. In its first phase, it acts identically to the Eye of Cthulhu, except that it spawns a Pustule Pod instead of a Servant of Cthulhu.

When it falls below 50% health, or 65% health in Expert mode, it transforms into its second form. In Expert mode, it unleashes three Cornealoa after transforming.

In its second phase, it circles the player and spews rays of corruption at the player, which inflict the Decay debuff.