This build provides high amounts of healing in addition to permanent 25 stacks of Might, Fury, Protection, Regeneration, Vigor and Swiftness to your group, it also has access to boon extension, lots of condition cleanse, projectile reflection, ability to counter one-shot attacks with "Rebound!" and damage increase for your party with Static Charge from Overload Air.
You want to cycle between all your attunements to provide specific boons and utility from each one:
If you need more healing and increased revive speed, you can swap Air trait line for Arcane trait line 311. With Arcane Resurrection, when you start reviving an ally, you will drop Geyser that heals and partially revives allies in small radius.
If you need even more condition cleanse, you can swap Air trait line for Fire trait line 121. Due to Smothering Auras, you will cleanse conditions every time you grant an Aura.
If you decide to replace Air trait line for either Fire or Arcane, you will not be able to provide your squad with Fury and you will also need to adjust your rotation as you will not be able to re-enter Air Attunement.