Alex_6725
of reading
2653
Read books
Lex's name in the comics is Alexander Joseph Luthor.
"The difficulty of casting a Shield Charm was relatively moderate. Fred and George Weasley realised that most adult wizards, even those employed by the British Ministry of Magic, could not produce a functional Shield Charm." From the wiki it also says protego is taught in 6th year which probably explains why many adults don't know it because they didn't take NEWT DADA
There were other valyrians in essos just not ones from the noble houses.
1. The potion basically gave him magic+ as you said it makes his spells more powerful for the same effort how is that not OP for the development of his magic. Also the potion gave him the ability to sense magic which is not necessarily OP but is easy to make OP. 2. He made an OP ring that stopped Dumbledore immediately so yes OP system. Also if he had no skill he would've ruined that first ring so it had to have given him skill.
I hope that's not true cause then half-bloods are superior. You could just do something like the pollution of the world pollutes the magic and him getting his magic cleansed allowed him to use the dormant abilities, this way no group of wizards(muggleborn halfblood or pureblood) is genetically superior. Also the gaunts all spoke parseltounge despite being so inbred likely much more than other families given the descriptions of how they look.