dude i wouldnt be too surprised if strange has a spell for memorizing all his spells. 😄 bolstered by the eye of agamotto, the spells he knows plus a few other trinkets strange is a telepath in his own right.(plus he does have shields against psi attacks) also, if anyone remebers, in infinty abyss when thanos clones wanted to destroy existence, strange went to investigate by way of the astral plane, where he met up with moondragon and even then he still had full access to his powers, so charly wouldnt necessarily have any advantage over him