Guild Wars 2

So I’m trying to create a build for WvW, but I’m not having any luck and metabattle is useless atm because they haven’t updated their site since the patch. Basically, I need trait advice for a WvW zerg build. Using fire/air sigils on my LB, and energy/force sigils on my GS.
Right now, I’m using Marksman, but I don’t know what other two lines to use. Nature Magic/ Wilderness Survival offer the best defenses in the form of boons and healing, but Beastmastery offers some nice stuff too. Any suggestions?

It was a quick build I made – but this might just work.
http://gw2skills.net/editor/?vNAQJARTjUqQBL2vCOsAXLG+Dq91XgAo73aYG8cvHC+SWRUA-TpBFwACOEAULDw4CAs4BA0a/BAHBAA

Beast Mastery has a clear answer of “no” since the only pet that stays alive for a bit is Bear – and that pet is not really useful to take into Beast Mastery. And Nature Magic offers lots of boons like protection to your pet to help it survive for a bit longer, and Bark Skin helps, too. Pets will just die in Zergs sooner or later (rather sooner). You’ll have to deal with it.