I was really liking the witch hunters. A decent early game, and mid level, control unit. Magic lock that doesn't end turn is REALLY GOOD. Random buff is spiffy I guess, but I don't think it helps you get Medals :P.

I was also getting rather impressed with the Faun. Being able to resurrect plants is a scarey good thing to do it turns out.

Rune Mage - am I to understand we are talking about unspent runes?

Rune mages spells get more powerful if you have unspent runes in your inventory but even though u do not have any runes you can still use them and use their spells.