Board Thread:General Discussion/@comment-6252544-20160213233306/@comment-25926288-20160214130954

Now, let's not talk about outside sources and go back to Once.

Once does have a slight problem with having a plethora of devices that are dropped as soon as the arc is over and I feel the biggest arc of inconsistency was obviously season 5a.

Zelena clearly had her heart removed and they "glamoured" everything from right to left. The Merlin wand was contradicted, the vial of magic was a cheap explanation, and one fo the bigger offenders was seeing Zelena look at a potion recipe and wave her hand at a sword without actually using the recipe.

Once has added a little rules here and there, but 5a still had wacky logic when it came to magic.