Great topic! I think it’s great to be able to revisit these things - even if there’s nothing we can do to change what our choices were, it’s interesting to reflect on why we made the choices that we did!
So here goes:
Soul exchange #1 - SKIP - I didn’t take anyone here as I didn’t have the resources at the time. In hindsight (and assuming resources) I would have gone for Guardian Chameleon
Soul Exchange #2 - Norns - I only had 10 heroes available to me, and of these, Norns filled the void that I had at the time in my yellow roster. Little did I know that I would be so far away from levelling them, and that I would pull other heroes in the interim. BUT! I don’t regret my choice, as I know that Norns will have some use in the future still, with their unique special ability.
Soul Exchange #3 - SKIP - This one is 100% regret not doing anything, but again, I lacked the resources. At the time I remember that I was levelling c. Guardian Kong, and loved having a reflecter so wanted to grab Theobald, but I completely skimmed over Lady Locke. She is still my biggest regret that I didn’t pull together 10 souls for her…
Soul Exchange #4 - Caitlin - This was such an unpopular opinion, but I really liked what Caitlin did, as a holy hit all with priority dispel, she just filled a perfect little hole in my roster - whilst she still has not been levelled, she is still in my “To-Be-Levelled” team and I will absolutely make use of her. My only other choice would have been Emilio, as something of a Red Psuedo-Healer, but, I don’t regret my choice.
Soul Exchange #5 - Milena - Honestly, I just wanted to free up 20 roster spaces - Milena does still fill a massive hole in my roster for a blue heal and cleanse though. Her 1st charge is significantly more important to me than her 2nd charge. But equally, she is much like Caitlin, not a high priority to focus level, but absolutely will get levelled. As useful and fun as Hatter would have been, he was definitely my 2nd choice and I don’t regret my choice at all.
tl;dr:
SE1 - SKIP - No regret, but maybe G Chameleon
SE2 - Norns - Meh, but no regret
SE3 - SKIP - Regret - no Lady Locke
SE4 - Caitlin - No regret
SE5 - Milena - No regret