Gandalf Vs. The Witch King

[Essex]

Originally Posted by Mansun

Gandalf indeed can die, as he did when he defeated the Balrog. His death appears to be like a binding contract set by Eru - reveal your true power to the full extent against Sauron or his seravnts in an assault & I will end your stay in Middle Earth.

But just because he can die does not mean he is very vulnerable to enemies. He could use all is true power to protect himself against a stroke from, say the Witch King's deadly Morgul Knife, so long as he does not use it to kill the Witch King.

and that's where our opinions differ. I cannot see any supporting evidence that allows (book) Gandalf to use a magic shield to protect himself from enemies. If he could, then the Balrog would not have killed him.