during Zelena's and Regina's fight, Regina decided to have the upper hand in the fight, by inviting someone from there past. But she didn't gain the upper hand because Zelena did the same thing. They both called a sister to help defeat each other. Cora had 4 kids Mirana is the oldest, she is known as The White Queen. then there's Zelena, The Wicked Witch. and finally Regina & Regine, the Twins. Regina is known as the Evil queen, and Regine is known as The Red Queen. They finally come together, but can they be Sisters?