Board Thread:General Discussion/@comment-25926288-20170429134340/@comment-25926288-20170531230719

But in the vein of that, can we find some other spells that are equivalent to compare many magic users?

Protection spells seem to be iffy since there are potion-ones, blood-ones, and variety of types.

The "Mirror across Realms" test only really says "Black, Rumple, Emma and Zelena can use a normal mirror across worlds, Regina (and anyone weaker in raw power) cannot. But that says only so much.