Not sure if its intended but its possible to fight your own team in the battle arena
Most definitely! adding more features that allow the community to do things together will 100% help the game grow. but i will say it would be nice if we could name our clans instead of just being known by our clan codes maybe something like [clan name](clan code)
along with maybe a feature to hide the clan code on the leaderboard if you want your clan to just be exclusive for your friends