Board Thread:General Discussion/@comment-25613119-20150302124809/@comment-25926288-20150325233012

I finally got it! She absorbed the power of the trident and became a like the Goddess Ursula, half-squid. We know what squid ink does.....neutralizes even the most powerful of foes. So, that's why she claimed to be more powerful than him...it's because she could neutralize his magic and simply crush him. This would actually make her one of the most powerful beings on this show. Well, if she wraps her tentacles around you, which is why they just don't get teleported out.

This would explain why Ursula was needed for the Dark Curse retrieval. There was probably an enchantment (dark magic) and her tentacles neutralized the enchantment and got it.