If I had a skilled up archangel that'd be a pretty killer double leads for a healer team, but really not that significantly more powerful than any other mono-color 2/4/2 setup... I could run double archangel leads, and then do freyja bastet Ceres echidna subs, but no orb changer and no enhanced orbs makes 4x atk not sufficient enough burst to take down many descends with enrage phases, could also run a mono-light healer setup with Amaterasu valk and angelion with echidna, which I think would be a little better, bind immunity/resistance on 4 members, 50k health, 5kish rcv which is relatively low, but also 2k autohealing, and I guess if I needed burst dmg I could bring a shynee and Athena instead of Amaterasu or skip echidna if the boss pre-emotive lot shields.... I'd rate it a slightly better team than any of my other mono-colors, but not by much.