Bat Ring

The Bat Ring is a War-Mode Accessory dropped by Battrax with a 100% chance when defeated for the first time. When equipped, the player gets a 50% boost to their movement speed, and they also get a 70% boost to their Melee Speed and Melee Damage when this ring is equipped. When injuring an enemy with a shortsword, 100% of the damage done is regenerated as HP. However, the players screen will be completely black. When the player walks or moves, a ring will spread out from where they stepped, bouncing off of any object it touches. In addition, when a player has a microphone hooked up to their computer, them talking will cause the same rings to spread out.

Trivia:

The rings that are made when the player moves are a reference to how bats locate prey, referred to as Echolocation, or using sound to locate objects.