I don’t know if we saw it (I tried lol) but Pan pointed at his wrist and said “Still, no magic” and Rumple said “Ah but I don’t need it” and then went into the whole shadow thing. So I’m not sure how he was able to summon his shadow without magic, or maybe he did cut his hand off and then fix it but decided that for once he was going to fight without magic. I kind of like the idea of him having magic but CHOOSING not to use it rather than him not using it simply because he couldn’t. Shows so much more growth.