Yes, it seems like that's the new format. That's how the new subclasses in the Wildemount book were presented, and it's how they've been doing it all through the past year's UA articles.The one thing that caught my attention - and this may already the case for digital content, IDK - is how the feature's level is written directly below the feature's name. No more "When you reach 6th level in this class, you..."
I wonder if that is the format that will be used from now on.
It's not at-will. It's 'number of uses equal to your proficiency bonus' per long rest - and each use only lasts one round.I like thew wild magic barbarian aside the magic sensing ability. That ties rather weakly on the theme and at-will magic detection is a tad annoying in play.
Oh right! That lessens the being annoying part, but I think it is still a bit thematically weak for the style of the class. I'm not sure that 'magic detector' meshes so well with the chaos theme of the rest of class.It's not at-will. It's 'number of uses equal to your proficiency bonus' per long rest - and each use only lasts one round.