User blog comment:MaxIrvaron/It's Coming, Friends./@comment-27984457-20180516060624/@comment-32712012-20180516061010

Unfortunately, the Arena only allows Group Battles of up to 5v5. However, you could arrange four 4v4 battles, then have the victors square off in whatever remaining battle sizes were necessary...

Speaking of battle sizes, Max, I think that you have 16 canon characters and 17 fanon characters. If that's intentional, that's OK; I just want to make sure that you know.

With all of this feedback out of the way, this looks like a cool idea!