The Perfect Ritualist/Elem build?

Ok, once I was doing a mission on Cantha, and we had a ritualist on our team. He claimed to have the perfect Ritualist/Elemental build. I didnt think there could be a perfect build, but in the end I was proven wrong. We got mobbed by tons of afflicted, everyone in our party died except him. However, the odd catch was, he was still getting mobbed by afflicted, and somehow held out without losing more than half his health. Does anyone know a strong build like that? He said he used Earth as his second element, but he wouldnt tell me the build. I dont know how he did it, cus I know I'm not a noob at the game or anything, cus most of the time I'm the last one alive. This guy was crazy though, he just never died. I dont know how he did it, but he had a build set up that obviously kept him from losing too much energy, and obviously helped make him immune to some of the damage against him and then somehow had a healing spell that was easy to cast. Can anyone help me out here? He told me he was a channeling/Earth build, but he wouldnt let me know the spells. I cant figure it out on my own because all my builds I can think of have a flaw. Is there such thing as a perfect Channeling/Earth build? and if so what is it? Thanks

You could of just clicked on his name to see the skills he was using

You are not a noob but didn't click to see his spells ? ....