Final Fantasy X Tips

If your trying to get tidus' final overdrive, Blitz Ace, Set his mode to warrior. so whenever he attacks, he gets some overdrive meter. First, get full overdrive and use Energy Rain. It will damage all enemies, and if your in a place with weak monsters (Like Besaid) You will earn a half of overdrive meter. then you just keep attacking till its full again. use this 50 times, or even less untill you learn blitz ace. i got it in half an hour by doing this.