Doma Castle as SCH

I've just been running that dungeon a number of times the last few days as SCH with shire gear, it is well doable. You're using aetherflow on excog, indom and lustrate, never sacred soil, and you use Whispering Dawn as your main healing source, use it pretty much every 60 seconds (unless the pull is about to be finished) and make sure to have your faerie positioned to reach your tank.

Doma has one tricky situation, briefly after the start there is a colossus (the third 'pack') with some intense cleave. Tell your tank to do that thing only, tank can still do double pulls before and after that one (3 soldiers into those spider things and then 3 soldiers and that airship robot before first boss) and anywhere else in that dungeon. If the tank pulls that cleavy colossus into the other two packs, the wipe was on the tank and not on you not pushing healing numbers that can't be expected.

You can use dissipation whenever it wouldn't cause you to miss out on whispering dawn.

That out of the way, this dungeon can be hit or miss depending on the tank's cd usage and pull strategy, you can do 40%+ of your healing output just with faerie embrace and whispering dawn or watch a tank go down despite your A-play.

/r/ffxiv Thread