Yes. Though it need not be used against pure evil because how do you define pure evil in this setting?

The same would apply, for example, if we had Sailor Uranus. She would be able to summon her Space Sword because it is connected to her heart/soul. Basically for a weapon to appear in the Arena that is not of Gamemaker design, it has to be attached in some way to a character, and unable to exist independently of that character.