Maybe being without magic will make Regina realise how fundamentally selfish she has been since Daniel died. (I was about to type ‘her whole life’ and then realised that she wasn’t bonkers and selfish until she lost the plot… after watching her mother kill her lover)
Magic has been a crutch for her. She began to learn it after a tragic event which this Armchair Psychologist says turned her psychotic. Her inability to understand why the villagers protect Snow, and her reaction to the villagers and the game of Pin The Arrow In The Evil Queen…. she just has no grasp of reality. No empathy. It is all about her – complete narcissism. Psychosis is a break from reality, a psychiatric episode where a person is unable to distinguish between reality and their delusions. Maybe she isn’t psychotic all the time, but she certainly isn’t well. Her worldview is informed by delusions: she is the rightful Queen. Snow killed Daniel. She has been hard done by despite being lovely. Emma stole Henry from her. The Charmings made her the Evil Queen. etc etc etc These are all total delusions – completely not backed up by any evidence.
Regina needs to acknowledge that and get some serious psychiatric help before she can be redeemed. Unless there is a magical version of Seraquel…..