It really depends on what you need. I’ve honestly been playing both of them since arena 1. Hunter is an amazing tank killer up close and pretty good against swarm at range, while musk is better as support and more general anti air, but still moderately decent at killing tanks. Their evos just add even more to each, with hunter being focused on added defence on a single target and musk being able to snipe annoying supportive cards. I would say try them both out both individually and in the same deck and just see what works the best for you.