One quick things about ascetics, though- their whole deal isn't that they only stay calm to put on a good public face. Instead, their main flaw is that instead of letting off wee bits of anger to take off the overall pressure, like pressure off a fault line, the Ascetic tries too hard to keep all that energy bottled up until, one fateful day, it just plain implodes on the poor fellow and he goes on a rampage.
Therefore, if Dante here was an Ascetic, he'd try to store up all that anger until, at some point, he'd just go off like a hand grenade with Tourettes. Also, Rage Mages just plain don't make for good politicians- they generally just don't have the patience, and the time they spend campaigning could just as well be put to use getting really, REALLY angry about stuff and becoming more powerful.
Just FYI., dude.
Nice job. Very interesting and colorful character, this A.V.Agina. Although I'd suspect that, for players to take him seriously, I'd need to change the name. One question which arises is, what would be an example of what might happen when you "feed the rage" too much? (To the point where, as AngryScottsman alluded in his post, rational judgement clouds over and reason gives way to barbarism.) I'm assuming that a well-trained mage rage would have tools in place to handle that, such as incantations which burn off rage, but have little outward effect?