"Valor" in FF6?

You could just remove all the references to the Berserk code that check to see "If Berserked, then use the Berserk AI functions". Berserk already increases physical damage as a status.

It'S a good choice for the replacement but you would still need to modify berserk because valor isn't suppose to last all battle, unless I'm mistaken. And isn't there some commands that can't be selected (by AI) while berserked? I'm not sure... I think berserk also has an incidence on Lore learning. This would have to be confirmed.