You need to chose between a:
- Berseker build (longbow, high crit proc and damage, low surviability (berseker equips))
- Spirit build (frost spirit, points in Nature Magic, warhorn, group buffs)
- Bunker build (Entangle)
Take a look at these:
http://gw2skills.net/editor/?fMAQJATRjEVV2FWCWs2Bi1j9s/+weYI+zoXhYVhdkA-jkyAYLAMGE9BiIAk8UWTgCiF1ioxqrxUuER127ioVLEggxA-w
http://gw2skills.net/editor/?fMAQJAVRjEVl1dVCWg2Bi+hM9ZEL17eMqSdqLWZFJ-jEyAYMI0GA1Ag+AlFLiGbdrIasqZioa7NRUtQACGDA-w