Dungeon Auras only apply for Normal Dungeons when using the Group Finder to form your party, whether it is random or a specific Dungeon.
Dungeon Auras are automatically disabled when entering Group Finder with a party of 3 or more before you queue up.
Dungeon Auras will not apply in Veteran Dungeons.
Tank Aura
1. Increases Threat generated by 50%
2. Decreases Damage taken by 10% - As long as you are within 30 meters of another party member.
3. Increases Healing received by 10% - As long as you are within 30 meters of another party member.
4. Decreases Damage dealt by 50% - If you are more than 40 meters away from another party member.
Healer Aura
1. Decreases Threat generated by 50% from restorative abilities and effects.
2. Decreases Damage taken by 10% - As long as you are within 30 meters of another party member.
3. Increases Healing done by 10% - As long as you are within 30 meters of another party member.
4. Decreases Damage dealt by 50% - If you are more than 40 meters away from another party member.
As long as you remain close to the other players in your group, you will gain bonuses that help you do better in the role you have selected; however, should you stray from others then those benefits are disabled. Getting too far away from your party members and you start to suffer a loss in damage as well. Dead party members still count as in range, should the rest of your party happen to die while on your watch; some things just can't be helped. Threat Increase on tanks allows even the most inept players hold aggro more efficiently even if they forgot to slot a taunt ability on their action bar, whoopsy! Now you be the best tank you can be, go all out damage, and still hold threat on most targets. Decreased Threat on Healers works the same way, should have a bad tank in the group unable to hold onto their targets and the mobs start looking your way, this combo should prevent that unless you go all out damage. Unfortunately damaging abilities and effects are not protected under the Threat Reduction bonus and will generate their normal amounts of threat.