Oh, though no one asked or questioned this particular question, I think I should give an answer to it anyway. The question being: “Why/How did Regina choking the shadow actually hurt it? Its a friggin magic flying shadow afterall.” Well I remember reading that some creatures who shape shift are confined to the rules of that which they transform into. So therefore, if the shadow turned into a vampire, sunlight would kill it. If it turned into fire, water would destroy it. And if it turned into a human, it would need to breathe. Just putting that out there *goes back to my strange readings*
That’s a good question, Watcher. Maybe she was using magic as well as her strength to choke it. So the shadow was feeling the magic choking it. Also, how did Tink know that burning the Shadow would kill it? How can a shadow be burned? Must not be an ordinary shadow.
Nothing is impossible on OUAT. Everything has a way of repeating itself. Keeper of the Keeper tread: https://oncepodcast.com/forums/topic/official-keeper-thread-3/#post-217924