Board Thread:Character Discussion/@comment-4877635-20140505150912/@comment-24667994-20140506025333

So her amulet is like a hoarcrux?

That's not a bad analogy. Here is Glinda's full line about the pendent:

"Guard it with your life, because in many ways, it now is your life. You were born with great power, Zelena. And now, now, this pendant will harness, protect, and grow that power--all of it."

Also for good measure, the full prophecy as read by Zelena:

"The scorceress from another land will make Oz her home until she fulfills her destiny and unseats the greatest evil the realm has ever seen."