I have played Wizard101 for about nine months now and i simply hate that to get to the dueling arena you have to go to unicorn way. Perhaps you can create a dueling arena in every world to make it easier so you don't have to leave your current world?
this is the point of marks but i get where u are coming from yes i would like to see portals to other worlds but to make it so players dont have to go to the world tree you could make it like you have to me ??? level to use these portals or this ??? rank to use the portals
while I like the idea of being able to get to the areana from each world, I make some of my best friends after an areana fight and if we appear in different worlds I would lose that opportunity. As much as I don`t want to face a level 40+ wizard because he is a private and I am a captian I still would not want areanas where you need to be a certain rank to enter.