Let me right-click a person & challenge them in the Wolve's Den.
Or form a party & right-click challenge an opposing party.
This way we can duel for fun or host cool little bouts or FC Tourneys without disrupting zones (which it seems the majority of forum-goers are against).
Perhaps make it so they have to be in-FC or on Friend's List so randoms can't spam it on you just to annoy.