Celestial Alacrity Scourge is a more aggressive version of Heal Alacrity Scourge which sacrifices some healing for more damage output. It can provide full uptime on 25 Might, Alacrity, Regeneration, Swiftness and partial uptime on Fury and Protection.
This is a hybrid build meant to replace a heal slot, so adjust Celestial Alacrity Scourge to fit the group's needs. If this is replacing a dps boon support, following the Condition Alacrity Scourge build and swapping the stats to Celestial may be a better fit if your group requires the additional Barrier but already has another support covering the boons aside from Alacrity.