Mantis is a miniboss located in the Bubble Cave.
The enemy is a one-trick boss, where it launches slow moving projectiles. After several seconds, they will turn red before exploding. These balls can be grabbed by the bind spell, and placed just below the mantis. Once they are in place, change to Nature form, and use a charged shot to push it from the ceiling. The projectile will eventually detonate, causing the mantis to be injured by its own attack.
After three hits, the mantis will die, leaving a health egg.