Gandalf Vs. The Witch King

Originally Posted by Essex

I diagree - because of this one line from ''The Istari' which I'll repeat again.

with the consent of Eru they sent members of their high order, but clad in bodies as of Men, real and not feigned, but subject of the fears and pain and weariness of earth, able to hunger and thirst and be slain.

This has been my argument all along. And no one has persuaded me against it yet.

Nobody has ever answered how Sauron, in his weakest form, was able to significantly increase the Witch King's power. The Witch King, even in his greatest form with the Ring in Sauron's hand, failed to make a great impact in the second age. Yet we must believe a weaker Witch King can topple Gandalf in his greatest form?