I got curious and Awakened Lohengrin to pit her up against my also Awakened Tiamat. Both have their cards equipped and I put them against the daily boss which is currently Tiamat. My Dian is T5 and my Ria is Awakened who I used in place of Dian so that Tiamat gets an additional buff off the healer.

Loen is stronger at the end of the day and because of that now I have to bench Tiamat,poor girl wont see light outside of Star Reincarnation but her Chaos Attribute kinda bugs me and also when you look at these numbers shes only a BIT stronger too.

If you already have Tiamat or do not have a highly transcended Dian you probably shouldnt bother. If Knights get one more buff push though theyll be kinging and konging