As Razmir is the endgame boss for my campaign, I had to build him in the same fashion as the players built their characters. He concentrates mostly on his mental attributes. Paizo did not specify that Razmir had a specialty school, which led me to build him as a universalist wizard level 19. As Razmir seeks immortality and has yet to achieve it, I applied mythic tier 8. For anyone interested, I will be posting the stats I came up with when I finish building him.