I have made this new type of PvP it's called as the title said Wizard dueling! In wizard dueling you can't use sowrds,bows or any thing other that a stick for spells So basically you can only use spells to win!!!the arena is being build now and will be here just in time for the update!!!
How to win? How to lose?
Kill your opponent. Get killed Knock your opponent out of the arena. Get knocked off the arena Do /back, /spawn or /home in the middle Of a duel unless your opponents cheated
true you dont see them with armer on do you it can be a no armer thing maybe or what ever the players want to do
I would suggest enchanted leather armour is appropriate.
As for pvp off, but spells on, yes it can be done, but it also prevents magic spells targeted at players from working. (except for AOE spells, cast outside the protected region which still strike but not sure if damage)
It is also possible to set up "anti-spell auras" such as used in spawn - where there is a PVP ring, but you cant use spells. (yes i know exact opposite of what you wanted)
There is also a possible BUG you can use to allow magic but not melee, using gods, a holy land area will become unresponsive to left clicks, but you can still /cast. However holy land was disabled for a range of conflicts with other plugins. Which sucks, cause holy land was in effect a factions system. I wonder if the auther can code it so members of that faction can cause damage but not take it.. no that would be too evil. Maybe if they make it so a more powerful faction can only cause damage in the holy land of a weaker one..