Colosseum is where you need to be if you are waiting for Zenimax to add /duel to ESO.
We are a cross-faction dueling guild, sister to Legend from the NA megaserver. If you join you will have a chance to hone your skills alongside some of the best players in the EU. It doesn't matter to us if you are battle hardened or new to authentic PvP; if you are an expert, we can provide you with the challenging encounters you need to stay at your best. If you are inexperienced, our members can practice with you and advise you on the tactics and builds suitable for your class and play style.
Send a mail in-game to @Legendarymage if you are ready to experience ESO's PvP in it's purest form.