Whilst exploring about the place i came across an area called Avid Crater (900x900) in Southern Artery Valley. It consists of a large lava lake with a set of 7 islands in the middle connected by bridges (slightly reminiscent of Tarasque). On each island are various large and small building but theres no mobs about and i couldnt find any buildings you can enter, unless you can pull missions that are here its a bit of a useless place really. But make the crater area 25% and you have a great combat area, the bridges and buildings give some places to attack from and the lava gives a small incentive to stay on them(increase lava damage and it makes it essential you stay on bridges/islands). Put a reclaim/insurance/bank by the large building on the bridge from crater edge to first island making that the 25/75% border and we can have some fun.
Thats my 2 cents anyway.
