3rd Category: Weapons
The best abilities are of little use if one does not have the right weapon at hand. Gandalf usually fights with his staff, which looks rather plain from the outside. In addition, he uses his sword Glamdring, which is also a powerful weapon.
Dumbledore would not be lacking either and would bring the infamous Elder Wand to the duel. He took this wand from Grindelwald after defeating him. The Elder Wand is one of the three Deathly Hallows and therefore incredibly powerful. It is acquired and can be used by killing the previous owner.
Its immeasurable power surpasses even Gandalf’s staff. Moreover, whether Gandalf has ever used such a powerful wand is questionable. Considering how fiercely he resisted the possession of the One Ring, he might graciously decline the Elder Wand due to its great power. The point goes to: Dumbledore.
