1. Astral Pulse could make use of a target sound.
2. Void is missing footstep sounds.
3. His attacks sounds are the same as those of Earth. Something more in style of Void Spirit would be nice.
4. Maybe give him a loop sound like Storm/Fire have it

PS: His model's animations are currently a copy of Earth's animation, Actual new animations would be nice.
PPS: The brewlings are still missing their bracers (since the Reborn patch years ago!) Their arms look like they are wearing invisible bracers, with their fur squished above their wrists.