MantisBoi

MantisBoi is a post-Moon Lord boss. It is basically one giant robot mantis with a person controlling it inside. The Praying Mantis must be summoned manually in the jungle with an Upbeat Signal.

Phase 1
MantisBoi will randomize through these attacks: Occasionally, MantisBoi will summon a circle of flying mantises around him which shoot lasers, so they act as defense and offense. They can be killed, though.
 * Shoot lasers from its eyes, rapidly
 * Summon a swarm of mantises
 * Charge at the player
 * Open a portal that shoots a laser and makes a full clockwise rotation then closes

Phase 2
At 666,666 health, the legs will start to shoot waves of energy that get faster as they travel. Also, the windshield may open up and the controller of the robot will try to shoot his gun at you.

Phase 3
At 333,333 health, he will now have 20 defense. In addition to that, he starts to teleport above the player.

Tips

 * Be careful as to not leave the jungle, because it enrages the MantisBoi. If he is enraged, he will double his damage, defense, and speed.

Trivia

 * It is based on MantisBoi.