public void heal(object obj)
        {
            wizard life = obj as wizard;

            if (life == null)
            {
                Console.WriteLine("No Health given");
            }
            else
            {
                life.health += intelligence * 10;
            }
        }
        public void fireball(object obj)
        {
            Random rand = new Random();
            wizard fire = obj as wizard;

            if (fire == null)
            {
                Console.WriteLine("Failed Attack");
            }
            else
            {
                fire.health -= health - rand.Next(20, 50);
            }
        }