[Psitticine]

I'm not sure but I believe Wesnoth gives a unit experience for each blow it attempts. I agree the emphasis on landing the final blow is too high, but I think that mitigates it somewhat. It would also seem to me that an XP award for defending against a blow would be a nice concept. You practice offensive, you get better; you practice defense, you get better. Who lands the last blow should be moot.