Blade of Ender

Inspired by your foe, you've crafted a blade using the powers of the void and added some Dark Alloy to grant it the ability to self-repair with Soul Energy.

The blade allows one to charge at a direction by right-clicking while sprinting, or to back step away by right-clicking without sprinting, though it will cause the blade to enter cooldown. The blade causes Void Touched and is sharp enough to send a void-powered razor wind when swung at full power, when it's not cooling down.

It can be repaired with Netherite Ingots on an anvil.