Thanks for sharing. The gladiator looks fun. It's an entire subclass dedicated to giving flavour and substance to your attack action. The 18th level feature is cool as heck, too, although maybe not particularly strong (by the time you manage to activate it and apply on an enemy, it's already in death's door). I can't help but notice that half the martial kit these days is "apply different/additional mastery properties to your attacks" and wonder, why didn't they just made the mastery feature more customizable from the start?

I'm surprised to see them playtesting what pretty clearly seems like Dark Sun material. I didn't think modern Hasbro/WotC had any interest or desire to revisit that setting.