This celestial booster build is great offensive support made for open-world and is beginner friendly. The equipment above is designed to be played with no modifications from the exotic gear obtained by the level 80 booster. If one does not have the level 80 booster available to them then the equipment can be obtained through crafting or purchasing directly from the trading post. This build utilizes the elite specialization of the scourge. Specifically, this build has great access to condition cleanse Nefarious Favor, access to barrier through Sand Cascade and Sand Flare, and boon corruption Devouring Darkness. This build takes the blood trait line which makes it great support as well.
Scepter allows us to stay out of close-range combat while applying conditions. Although this is beneficial to our survival, what makes this build strong defensively is the ability to convert damaging conditions into boons using F2, applying a large amount of instant Barrier using F3 Sand Cascade, and F5 Desert Shroud.
You are also going to be running the blood trait line gaining Transfusion. Using F4 Garish Pillar you will be able to pull downed allies to you and help revive them faster due to Ritual of Life. Your healing skill Well of Blood also helps you revive allies faster.
One of your strongest damage-dealing combinations is the use of the corruption skill Blood Is Power and F5 Desert Shroud because you are going to use Plague Sending. Using this combination of skills will initially inflict more conditions on you and then those conditions will be transferred to your enemies. Furthermore, the damage dealt with Devouring Darkness and using shade abilities triggering the Manifest Sand Shade effect.