So Magic Arena has occasional events where the event is the current standard format, but a bunch of cards are banned to mix things up.
I think the current card pool is healthy, but there are a few outlier cards that would be interesting to see what life would be like without them. How about a future series has a banned list just for that series to shake things up?
I'm thinking cards along the lines of Unprepared, Legendary Holster, Puppet, to name a few.