If the mob has no AE that does damage, duel someone to get in zerker, use a 2her, and use Precision disc.
If the mob has an AE that does damage, Warding Star + OH epic (assuming you don't have epics BotGDE, SCD, or EotN are probably the best substitutes) and use Precision.
For gear you can get a bunch of +dex from the Blazing pieces and by using different jewelry. Strength is pretty easily capped. Now that you are not tanking though, you'll rely more on resists as you don't have a dedicated healer.
For buffs, if you can, get Avatar, Bard epic proc, VoG, wolf form, etc.
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