Don't matter. Today is now.

Pretty much what @Lith said, honestly.

I'm little more than a curious arena dabbler, but one of the things that always turned me off to arena years ago was all the drama. There were few if any matches that ended on amicable terms. Everything devolved into a flame war and nobody was ever happy regardless of who was judging. But while that kept me and new people like me from joining, I think what really killed the forum arena scene was just everything being moved to discord. I remember someone hosted some giant fighting competition and I was kind of interested in joining, but it turned out all the fights were happening on discord and I could barely keep up with the dizzying amount of discussion that was being had.

It's not dead though. I doubt the ongoing battle toyale is for everyone, but it still got players. Ultimately, I'm going to be more interested in that over the super cool battlebros from time eternal. I'm sure they were cool, but you need to think about the current era of arena RPers instead of those that have hung up their cape.

I'd like to get myself back into the Arena. Preferrably something low-tier on the power scales.

In my experience, the devolving into flame wars typically resulted from high-powered characters with different underlying mechanics coming to clash.