Originally Posted by
The Chou Lives
The issue is Geralt comes from low fantasy where lore,prep, and such means the win.
If he has no real knowledge, he will try his best to find it before hand. So in character he would not just rush in to try to kill Ganon. That’s not his style.
Though his mutations allow him potion consumption for meta human stats (brief) and can access puny spells. But yeah, just yeah.
And his mutations are not magic but chemical treatment, Master Sword is Magic/holy based. Do not see why Geralt could not use it, he damn well would attempt it if he knew the truth to it.
He so t dumb. In his world you cannot afford it.