As the title suggests, this video really shows the usefulness of Lenna and how true it is that you can fit her to any lineup.
I teamed her up with my undergeared characters and also those without any good artifacts.
Zell with his low extremely inefficient mechanics only has his 35 cp weapon and Yshtola recently reworked, only with her 35 cp weapon were cariied and supported by Lenna to finish this stage. From brv and hp regeneration, to battery and damage Lenna does it all along with a support Golbez for additional nuking ability.
Char Used:
Lenna
Yshtola 15 cp only
Zell 35 cp only