Board Thread:Wiki-Related Discussion/@comment-1916997-20171222202521/@comment-24304025-20171223175643

The 5th curse was cast by the Coven + Regina.

The Coven is formed of Gothel, Drizella, 5 witches we don't know but Gothel does, and one remaining spot, which hadn't been filled yet. The NEF Coven of the Eight was not complete yet, it was called of the Eight because they needed to find the eighth member. Regina was coerced into taking the place of the eighth member, but that's just replacement for that specific purpose, while they didn't have their eighth witch.