Wow, everyone going for "Wizard" but I'm not sure you're all quite understanding the incredible gamble you're taking for no real reason that I can see.
1. "Wizard" turns Mandred from firm heir to more-likely-than-not will never be Emperor.
2. Imagine the ugly political fight over which College gets him. Could get real, real bad.
3. Even if he does become Emperor, rule will forever after be undermined. More likely overthrown, more likely assassinated.
Why would you do that to him? What justifies that? Small increase in personal power will not overcome huge decrease in political power.
[X] Nullify
[X] Ranald