Great combo: Necromancer Draconian, put focus more or less equally on Int and Will. You have your skeleton minions to distract enemies while you pelt them with powerful flame attacks. Got me the Devestating title.
Just make sure you move in such a way to allow your skellys to take the brunt of the attacks. One good tactic is to go to the edge of a room, summon the skeletons into the room, then start pelting the room with ignite and flame breath.
So, I think I've discovered a potentially game-breaking glitch, guys. Fave it if you think it's useful. Use 'Intervention' one turn, then 'Block' the next. The game apparently only recognizes one shield 'strength' at a time, and the 'Block' overrides, so what you end up having is an invincible shield that lasts as long as you keep 'Intervention' up. Essentially, for 7 Focus every few rounds, you can make yourself completely invulnerable.
Good job copying the exact plot of Portal, more or less. I say that in only a slight spirit of irony, you understand; it's a shameless rip-off, but you did a good job writing those signs in that characteristic 'committee speak', with its utterly impersonal tone, pointless double-talk, and contradictory fine print. I found myself laughing at times, in spite of the fact that I couldn't stop imagining all of it in GLaDOS's voice.