Honestly most of your kit will get you through this fight with minimal issues. Rouse + Whispering Dawn is extremely useful in mitigating Uheki, and keeping Galvanize constantly on the party will help give some margin for error if someone makes a mistake. Likewise, many of Eos' abilities are useful in this fight and I never found a reason to use Aetherpact and likely will never use it here unless paired with a second SCH.
Honestly your biggest enemy in this fight is overhealing, particularly during the Sword Phase. If you're with a WHM or an AST I highly recommend you leave the majority of healing to them after popping a Rouse + Whispering Dawn and Succor combo - and instead focus solely on keeping the tank who is getting the orbs up instead. During the transition of this phase another Succor and Fey Illumination will help your co-healer deal with the party while you focus on keeping that one tank alive. Once the phase is over a quick pop Indomitability will heal the party. Mind that's just my and my WHM cohealer's preference.