Starter healer... WHM?

[Rein_eon_Osborne]

You will most likely end up losing dmg potency if you switch sects and apply aspected benefic for shields. You could have been using dot on the mobs before the tank has gathered them all in one place. Before the gravity spam comes, most of the mobs should already have dot applied on them.

What..? You can’t switch sect in middle of encounter. What Deceptus wrote was more like a prepull shielding, something that SCH can also do similarly with their Adlo & WHM with their Divine Benison -before pulling begins-. They have no potencies to lose because there's simply nothing to target at that point. After that the AST can switch to Diurnal and begin Combust'ing as the tank begins their wall pull.