Mechromancer

The Mechromancer is an Pre-Hardmode mini-boss that is found during the Goblin Army event.

It can be detected with an Lifeform Analyzer.

Spawn
The Mechromancer can occasionally spawn anywhere during a Goblin Army after the Eye of Cthulhu has been defeated.

Behavior
The Mechromancer will walk towards the player and summon up to three miniature Coil Drones that will descend slowly upon the player before exploding upon contact. The Mechromancer will fly on the top of the player around using Rocket Boots, leaving a trail of damaging embers behind him. Once finished flying, he will then fire three homing rockets that inflict the On Fire! debuff.