Mellow Ezlo
Spoony Bard
I think Terminus is right, honestly. It makes the most sense, if evil cannot touch it, that they wouldn't be able to pick it up at all. Maybe it sets off a shockwave or something when they get close enough to it, that throws them backwards.
When the Master Sword is in the Pedestal, only the true hero can actually pull it out, so that's also reminiscent of Thor's hammer (and the story of King Arthur). If normal people can't even pull it out, there's no way evil ones would.
But ya. I think it would harm them in some way if an evil being tried to touch it, because it is the Blade of Evil's Bane. It was designed to hurt evil ones, and that it shall do.
When the Master Sword is in the Pedestal, only the true hero can actually pull it out, so that's also reminiscent of Thor's hammer (and the story of King Arthur). If normal people can't even pull it out, there's no way evil ones would.
But ya. I think it would harm them in some way if an evil being tried to touch it, because it is the Blade of Evil's Bane. It was designed to hurt evil ones, and that it shall do.