Board Thread:General Discussion/@comment-6739926-20150118083555/@comment-26211408-20150316041138

Team Cora can't use mirrors because that would be considered a weapon, due to it's potential to cause harm. IF we're going to allow mirrors to be used, we should note that only Regina and Ingrid have been shown to be able to fire magic through them(Regina's fireballs and Ingrid's Ice crystals). Also on the topic of mirrors: hello? Shattered Sight? It can be focused on specific people, and can be used on Team Cora only. They have a lot of internal strife and they'll just take eachother out with Zelena being the last one standing.

But if we're going to follow the rules STRICTLY, then Team Cora already lost. Zelena requires her pendant to use magic (I'm using these characters at the time they were most powerfull, so the time Zelena had her pendant), and it can be considered non usable, due to the 'only their own magic' rule. The pendant IS only her magic, BUT it amplifies it, so it doesn't all count as her own magic, as some of it was boosted or given (We don't know how the pendant works, just that it amplifies the user's power). Team Cora's strongest member is Zelena, and with her out of the picture, it's a 2 against 3 situation.

Ingrid has been shown to be able to create only one ice monster at one time, but it required the power of two witches to defeat it, and if any part of it remained, it could regenerate. Elsa can create three monsters/creatures at one time (Olaf in Arendelle, the ice giant guarding her castle fell down the ravine, it never died, and Marshmellow while she was in Storybrooke), though her creations can be taken down by one fireball. From this, we can assume that ice structures created from Ingrid require the power of two witches to break, while Elsa's structures require one. Also, Team Cora's members have only ever been shown to be able to create one fireball at a time, and only using one hand to do so. Ingrid can create chains that grow stronger the more intense it's holder's emotions are, and I'm pretty sure Team Cora would be scared out of their minds with their most powerful member being useless. With Ingrid and Elsa's creations, the battle now becomes a 2 against 7 situation, completely against Team Cora's favor.

Only Regina has shown the ability to create protection spells, and Emma broke it down pretty easily (but may have been due to their pooled power by the bracelets), whereas Emma's barrier required both Cora and Regina's power to knock down. Regina has been shown to be able to  conjure weapons out of thin air, but this may have been her teleporting a weapon to her from another area. This can be countered however, by a simple ice structure.

Team Cora loses this round due to the situation and guidelines, I could go further and tell you how they would lose even with Zelena's power, but I tried replying two other times and those messeges got deleted XD