25 Mar 2009 at 21:41 - 3
The biggest threats in all of those are either the Elementalist or Ritualist Bosses. As Shayne suggests, bringing [[Broad Head Arrow] will help with this, or alternatively you could bring a [[Power Block] Mesmer to almost eliminate the threats entirely.
For Boreas, bringing [[Frozen Soil] will help in the Arena section, as most of the combatants bring [[Resurrection Signet]. Focus on the healer first (if present) and then take out the Boss so that your skills recharge. When you get to the Kraken, make sure you let the boss [[Resurrect] so that you can charge the Spear's damage, you'll find this the easiest way to defeat him.
For Imperial Sanctum, bring a Curses Necromancer (Heroes work fine) with [[Spoil Victor], [[Insidious Parasite], [[Price of Failure], and you will fare better. Another trick is to bring [[Wanderlust] and [[Earthbind]. Although Shiro cannot normally be knocked down, Earthbind allows him to be KD'd, and for the full three seconds you'd expect. Above all, bring reliable Stance Removal such as [[Wild Blow]. Don't rely on [[Wild Strike] or [[Wild Throw] since those cannot be used as readily.
For Tahnnakai Temple, aggro control is key. Be mindful that while AoE damage is devastating to many of the groups there, having several Afflicted Soul Explosions go off at once can easily wipe your party. As such, don't bring Heroes or Henchmen with significant AoE, but rather single-target damage. The melee here can be a pain, by spamming [[Enraged Smash] and the like, so you may want to focus your own build more towards shutting them down rather than the casters. Bringing an Ebon Bow and [[Ebon Dust Aura] with [[Volley] works wonders to Blind melee targets as well as Afflicted Rangers, as well as opens up some defensive capabilities such as bringing [[Armor of Sanctity] or [[Mystic Regeneration]. These can be very helpful both to cover Ebon Dust Aura as well as allow you to "tank" so that your H/H aren't kiting all over the place needlessly.