I need a support/distraction build
The Staff is the primary support weapon. Winds of Chaos gives your allies Might and Fury, and it is also cast by Staff Clones; and Chaos Storm is prized for its AoE Daze on enemies and AoE Aegis on allies, not to mention being an Ethereal Field on a relatively low CD (for mass Chaos Armour). Your other set should probably be Sword-Focus: the Sword provides boon-stripping through Mind Spike, which is also used by Sword Clones; and the Focus provides group Swiftness, AoE pull and when traited, Reflection.
For Utilities you definitely want to focus on Glamours. Feedback is a powerful Reflection skill that also has a chance of imbuing reflected projectiles with Confusion (being an Ethereal Field), Null Field is an AoE boon-stripper and condition-cleanser, Veil provides group stealth, and Portal… well, good use of Portal (and a coordinated group) is awesome. Plus, apart from Portal all of these are Ethereal Fields for proccing Chaos Armour.
You could also go with something like Mantra of Pain and Restorative Mantras (Inspiration 20), which gives you a relatively spammable group heal (~2,600 HP every ~5s). Signet of Inspiration can also be godly with a coordinated group, get your allies to pile boons and you and then share them with everyone.
For Elites, Mass Invisibility gives you a group stealth, and Time Warp increases the attack speed of all allies in the area by 50%.
(edited by Embolism.8106)