Unless SE’s willing to fix the lore and/or mechanics to make Eos and Selene work as distinct entities within either a healing only constraint or non-healing non-DPS utility constraint I do not feel compelled to force them into distinct roles at all. Eos became good because people realized she was more of a DPS increase than Selene straight up. Seraph also adds a major complication to the mix. My opinion is that they should figure out if they want to do a full on rework in the first place then comb the appropriate feedback out of us in the devtracker.