Board Thread:General Discussion/@comment-4519633-20141022032431/@comment-25926288-20160417134713

Power, speed, versaility are amongst the biggest factors when it comes to magical power, with magical knowledge in tow.

If we do what we know of for speed (except 517 which was weird), Zelena is amongst the fastest spell casters. For speed, it tends to go: Zelena, Rumple, Emma, Regina amonst the main crew.

If we go for power: it's Rumple, Emma, Zelena, Regina

If we go for versatility: it would be hard to tell unless we go by feats. By feats, it's Regina, Zelena, Emma, Rumple. By statements and magical knowledge this wouldn't be the case as it would be: Rumple, Zelena, Regina, Emma.

So, with just those four it would be in an overall tier list:  Rumple, Zelena, Emma, Regina roughly speaking. With a whole cast of characters, it would get hard as some lack feats and others have superb feats.

Example: Merlin and the Dark One should be equals, but Merlin turned a desert region into a lush forest. Noone in this show comes close to that, especially not any Dark One. They are equal in stated power, but they don't ever do much. Rumple says that he doesn't tend to do showy things and he has less feats that Regina. I mean as far as we've seen, Regina defeated Pan, put a protection spell that Pan couldn't get pass, and trapped the shadow in the sail and meanwhile Rumple was sitting in a box, lol.