I'm ready, and thank you!
I think treasure chests are most manageable for me - I'm not an artist nor a storyteller, which is why I mostly stick to battling, haha. However, I think branching out and working on their TCs is a good step because, like you said, they can provide a lot of personality on their own :D
Thank you so much! I've sent a friend request. I am so pleased to add them to my little menagerie of creatures.
It's a very fun little book, I hope you enjoy it when/if you get around to it. :D