THus I replaced her with a Blue Counter/Evasion girl (not sure about her name).
The sad thing is - both of these girls are bloomed, but there is MASSIVE disparity in their stat lines, and admitedly Leo chan has better passives as well. You can tell that the Blue mace girl is one of the older ones simply by how much weaker she is.
The mace girl is Water Dropwort and actually she is from event 51 and she was the newest of the team just behind Baikamo (who is from event 64).
And if I compare them, Water Dropwort is much better than Lion's Ear. Almost same ATK, much higer defense and lower HP. Abilities are the same but Water Dropwort has 100% counter against 80% for Lion's Ear.
Or I didn't understand something...