Choose your roles:
Guardian
Feral
Resto
BalanceTrash
- If necessary you can los Twilight Destroyer's
Umbral Wind - You can remove
Enveloping Shadowflameusing 
Improved Nature's Cureor 
Remove Corruption - Make sure that people hit by
Twilight Flamehave enough HP to survive Umbral Wind - Twilight Lavabendercasts
Ascensionwhen he reaches 50% hp. It can be deadly when combined with 
Dark Eruption. Make sure to time your spells correctly so you can conver the full dot duration. - People hit by Faceless Corruptor's
Corruptwill take heavy ST damage and should use their defensives. Try to have some hots on everyone and move your 
Lifebloomon the person hit. 
Implantand/or 
Nature's Swiftnesswill help a lot with the healing.
General Umbriss
- Use
Barkskinon 
Rock Spike - The healing requirements for this fight are low so you should be able to spend most of your time doing damage.
Forgemaster Throngus
- Use Barkskinif targeted by
Molten Spark
Drahga Shadowburner
- Save your CDs for when Valionaspawns.
- The healing requirements for this fight are low so you should be able to spend most of your time doing damage.
Erudax, the Duke of Below
- Use Barkskinon either
Abyssal Corruptionor 
Void Surge