I like this idea, but isn’t that basically what the last tournament was? After the re-set everyone was in their own arena. But then people started losing and going down, which caused a ripple affect in the lower arenas. I was in Aviary at one point but ended up in Jurassic Ruins at the end because of the bottleneck in Lockwood.
I don’t think it would be possible to “lock” someone in a particular arena unless you just reset everyone in each arena to 0 and then let them go at it. But if someone loses a match, would they go negative?
I think the better option would be an opt out button. So people can choose whether or not they want to participate.