IMO two slow heroes on defense is asking for trouble and Kunchen makes a great tank so…apologies to Isarnia but she has to go. In addition, her special simply overwrites Kunchen’s so not brining too much extra to the party.
You have double green already so going 2-2-1 may be risky but Seshat should pair very nicely with Kunchen. In the wing where Isarnia is now.
Two debuffers and two cleansers is nice. The minions are additional healing for when Kunchen dies. Eve and Zimkitha both give healing via elemental links and that is nothing to be sniffed at.
I believe that would be a tough team to beat.
Red Hood doesn’t really cause many problems on defense. I haven’t seen many and she was never the difference. Due to the small sample size I could have just been fortunate with boards or the enemy had terrible team structure.
Athena’s defense down will be overwritten by Kunchen’s so less effective with him.
Seshat in wing would still be vulnerable to Onatel, Proteus, Hel (I am not sure about Hansel, Gretel and Merlin). She resists mana cuts, not blocks or steals, so be aware that wing does leave her a little bit vulnerable to some common, powerful heroes.
Nice Roster BTW - Forte!