Board Thread:General Discussion/@comment-26340222-20151202103411/@comment-26340222-20151203093920

Rainarooo wrote: Once Discussion wrote: Rainarooo wrote: Similar to Merlin's hat, maybe, Pandora's box can't contain the soul of a Dark One, even only one. If it can contain Rumplestiltskin (Or Mr. Gold, however you want to look at it), why can't it contain Nimue or more DOs? Wow I forgot about that. Thanks for reminding. This proves that Pandora's box has more capacity than Merlin's hat.

Well, Pandora's box was created by a God (I know Excalibur was also kind of created by a God, only as the Holy Grail but reforged by Merlin) but Merlin's hat was created by a man gifted with immortality by a God, strong by all means but still only a man.

So, in theory the two strongest items in the entirity of Storybrooke are Pandora's Box and Excalibur.