The Evolution

The Evolution is a post-Moon Lord accessory that drops from the Ceaseless Void. It is the rare variant of the Arcanum of the Void. Any projectile that strikes the player has a 50% chance to be reflected. When a projectile is reflected, it will deal 10 times its original damage to any enemy it touches, and the player will gain a life regeneration boost. Additionally, if the next projectile to hit the player is of the same type, the projectile will deal 15% less damage. This effect will only trigger once per projectile type. So, if the player were to get hit by three projectiles of the same type - reflecting the first - only the second projectile would deal 15% less damage.

Trivia

 * This accessory is a reference to the Evolution and Antagonist shields from Borderlands 2.