How To Clear Episode 4 Chapter 10 - 7c - Serene Purity Adin
Different from Verdant Adin, Serene Purity Adin is more suitable for support rather than damaging. Cause of that, her allies are good in attacking. But i think her stealth buff isn't suitable. As if she says : " Come, defeat my allies, so i won't have any protector anymore. " But well, that's it. So, just defeat her allies before they defeat you. This way, Serene Purity Adin's support won't give you hard time ( cause there isn't anyone she can support, right? ).
Same with before, don't bring a non earth elemental heroes unless you can't or don't have. Cause you need to struggle more by bringing him.
Though it seems simple ( Defeat Serene Purity Adin's allies first then you can defeat her easily ), when they are present, her confrontation and support is quite good. So, make sure that your heroes can survive in the first period of this boss encounter. Any soul weaver that can heal all allies by basic skill will be a great help. Such as Destina and Ruele ( you will have enough souls to activate it - thanks to first two rounds - ).