the best way to beat barron on the second zone stage 10 is to use a number of abilitys from the biological class !
1st use the abilty perdetor form and cast it on your self ! your morph into some kind of creature and regan 100 focus every turn!
2nd use the abilty agilie exposure which lowers barron defence which means your damage does double !
3rd use destroy and you hit barron for about 2000 + damage
Repeat This a Number of times and you should beat him with ease !
Good Luck !
fatbrad2k8