2) YES! Astarra/Conjurer happens to be my favorite hero/class combination in the game for this reason. She is a fast mage with high willpower, potential for good defensive capabilities with the images, and can attack at long range using channeling and refraction. With the right gear, that is a powerful hero that's just plain fun to play with all of the options.
I now play campaign as an OL, and one of the heroes - Astarra-Conjurer. She can move now 23 spaces. 23, Carl!!