I can't believe this still exists.
Mage Arena got written in between (and sometimes during) my various class periods in middle school. It was my first experience making a complex game, storing variables and weighing probabilities. In this time frame I also wrote a "Teacher Mode" for the Ti 83+ graphing calculator, which created an environment simulating a calculator without any games on it (Ms. Faye had a reputation for deleting all programs seized on our graphing calculator.)
I was planning to release a version 2, and had actually gotten a working prototype working that had 5 levels of scaling difficulty, but a friend of mine played a prank and deleted everything on my calculator. I was so disheartened I gave up on the project, and didn't code again for years.
I wrote this game when I was 13, and it still seems to be the most downloaded work that I've ever created. Indie Games are still my thing - check out my indie game studio, SendMorePeople.com - and get in touch.
Also, fireballs are the best move. 1/7 chance to be totally awesome.