Board Thread:Spoilers!/@comment-26196542-20150930211355/@comment-24674051-20151007144405

Actually, and this is only slightly off topic, I got the impression that a whole Excalibur wields great power. In Arthur's hands, it is not necessarily Dark. But in Emma's (or any other DO) hands, it becomes a weapon of great darkness. Basically, the sword is an extension of the wielder.

I don't see Arthur as "Shady" as much as just a typical Legendary King, with a little extra dimension added.