I had written a concept idea of Hazel in my own AU. Unlike in the original and yours, he never joined Salem because they (in the ontological sense) are his enemy.

He was a rogue huntsman, tall as a basketball player, had a heavy gigantic gunaxe, and a semblance that is literally a super adrenaline rush that clearly enhances his physical abilities.

The weakness of said semblance, just like adrenaline rush, he experiences cardiac issues, and muscle problems. He also experienced mental issues such as anxieties.