Originally Posted by
Menae
A) Eos is not worthless. Rouse+Whispering Dawn means the WHM might be able to skip a Cure 3, and Fey Illumination is available for every dreadnaught. Even if you NEVER use WD, Fey Illumination gives more healing than Selene.
B) Selene is not always a dps increase. She just lets classes use their resources more quickly. That may or may not be a good thing depending on what's holding your dps back. If they are running out of TP/MP, Selene does nothing for them. If there's a phase where they have to burst something down quickly and Selene's buffs let somebody get an extra global in, then she might be worth it.