So not just training ground for newbies but also a sparring place for veterans?

[ Caster does show excitement about this idea. It's smart, it is probably needed- he has his own training hall in his temple but it's not really open for just anyone. ]

Maybe make some events for all kind of people. Like races and tournaments

[ It does remind him of festivities the king could on, not just on holidays but as celebrations for important happenings ]

You're onto something good!