Training magic level using poison wand/rod on immune creatures
If you'd like to train your magic level up (most commonly used by free account players) as a Druid you may consider attacking a snake with your Snakebite Rod. As this rod causes poisonous damage your victim (the snake) won't be at all affected. So long as you have a supply of food an a shield you should be safe to leave your Druid in battle. Perfect for leveling in shielding if the monster can damage you slightly. Come back now and then to make sure everything's ok and that you haven't been kicked - voila training a Druid's Magic Level.