to repost my earlyer comment about spells in Battle arena it might be a good idea if you use the MP as the requariments for the speels the higher MP you have the better spells you can get of coures you will have to pay as well but a good high lever spell is Inferno ball hope you read this tukkun
It opens a Console I use when testing stuff, it's pretty useless for everyone else. The commands can be found in the forum thread.