High Elves and the Balrogs

[The Saucepan Man]

Originally Posted by Tolkien

Three times Lorien had been assailed from Dol Guldur, but besides the valour of the elven people of that land, the power that dwelt there was too great for any to overcome, unless Sauron had come himself. Though grievous harm was down to the fair woods on the borders, the assaults were driven back; and when the Shadow passed, Celeborn came forth and led the hose of Lorien over Anduin in many boats. They took Dol Guldur, and Galadriel threw down its walls and laid bare its pits, and the forest was cleansed.~Appendix B: Tale of Years; The Third Age

The fact that Celeborn led the host of Lorien while Galadriel threw down the walls of Dol Guldur has always suggested to me that she was wielding 'magic', while Celeborn led the physical assault.