Overhelm is a Technical Skill in The Legend of Dark Witch 2. It is the signature skill of Herbert.
Effect
The skill is virtually identical to when the player uses it versus when it is used in the boss fight with Herbert. Using it will spawn a shield for a brief moment before it automatically disappears. If the shield is hit, it will disappear faster. When used by the player, Overhelm will use most of the capacity gauge.
Upgrade
Like the other weapons in The Legend of Dark Witch 2, Overhelm can be upgraded at Papelne's shop to make it stronger. Upgrading Overhelm will increase the endurance of the skill, allowing the shield to take more hits.
Super Effective
Klinsy is weak to Overhelm in The Legend of Dark Witch 2, although it does not actually deal damage to her. Instead, none of Klinsy's attacks will cause Overhelm to disappear faster, making it helpful for dodging her attacks.