I liked 4w5 better than 4w3, but the rest seems just fine.
And by the way, can I be an INTJ?
Whoever says yes gets an apprenticeship role side by side with the great archmage and his almighty mastery over the dragon overlord!
Yeah you can be an INTJ. Make sure however that your apprentice is not a Sith. They will overthrow you so they can become the master. I wouldn't mind learning your secrets and become the master over the dragon overlord.