Board Thread:General Discussion/@comment-26184894-20150716154728/@comment-25926288-20150717145521

Light magic didn't defeat Zelena. It stunned her and then they took the pendant.

Regina defeated Maleficent because of a distraction. Mal easily knocked her out in season 4.

Power does matter, along with Skill and intelligence.

Regina has shown a variety of skills, but she lacks the power. She's very impulsive.

Zelena is more powerful than Zelena, has skills, and is likewise impulsive.

Maleficent is around Regina's strength, has strong specialty is fire and sleep magic, and isn't that impulsive.

Emma is the strongest, less skilled, and isn't that impulsive.