Board Thread:Character Discussion/@comment-5934324-20130325011804/@comment-5106672-20130429150218

I'd say the second hypotesis is closer to truth: the fact that Tamara needed to chase the Dragon (quite literally, in this case) in order to obtain his potion to analyze it contraddicts the idea of her coming from a future where magic has already been studied so that it could be bound. I also think the cuff Hook had Regina wear simply contains some combination of elements that inhibits magic (possibly tested on the potion during those months) rather than some very sophisticated nanotechnology of sort.