Board Thread:General Discussion/@comment-25926288-20170429134340/@comment-25926288-20170616230504

DracoWombat wrote: Regina's light magic is canonically not as powerful as Emma's. The "strongest light magic" thing was merely poetic. Glinda was never had a chance to even try to hurt Zelena; she wanted to talk and get through to her in the Royal Palace of Oz and before she even had the idea to blast Zelena, she was banished to a dimension she couldn't leave. Glinda never even had the chance.

As for Shady Blue, she is Shady Blue. Aside from that one time she tried to stop Regina in season two, she's basically allowed all villains to walk by without doing much of an effort to stop them. It's a plot hole, sure, but that's just how things are. I totally agree with you. Rewatched the scene Glinda says, "But only a purveyor of the strongest light magic will be able to accomplish such a feat [of removing Zelena's pendant]".

So this means either one of a few things:

1. This person has the strongest light magic and thus will be able to remove the pendant and defeat her, or

2. This person uses the strongest type of light magic (from love) and thus can remove the pendant and defeat her, or

3. Glinda is a clueless witch that spent to long watching Frozen on Ice, live from her portal dimension.

Technically, Glinda doesn't say she tried to defeat Zelena, but that she tried to stop Zelena from giving into dark magic. But her statement of her weak light magic is more towards David asking for her magical help in fighting Zelena. (Well, that says nothing of where she flass on the scale, except that she's weaker than Regina and Zelena, lol.)