Just whipped up a quick build as a point of reference. This one is a burning focused spirit weapon build. I will be trying to make a power one work at another time but I don’t think those are as viable right now. Again this was made in like 2 minutes but it should give you a solid point of reference when making your own.
http://en.gw2skills.net/editor/?vVAQNAR8flsAhqgYRQwOIQQEHxDVeFbxY0GCvwjWDgtcAA-TZhAABws/A0XAgOOIAA8EAErMAA
Edit: An alternative to running Celestial would be to use Carrion, but I have not tested it out yet. Would give more damage potentially at the cost of survivability.