OR for a better chance, use the stun and spells taht take away mana, Baron will aattempt to use that spell that decreases his health dramatically for his MP, the stun prevents him from doing anything on his turn. Once you get to the breaking point of his health, he will use the spell, holy scars. This will enable you to deal thousands of damage to kill him easily.
 "Sonny 2"){kind=icon}