Easy Exp. At begining of game
This requires the card mod from Questcoltal ( after getting card )
After the Dollet mission and you can go in the training center with Quistis, card mod a Gayal to get a mystery fluid and that will give Quistis Degenorator. Kill her and use a pheniox down so she will use her limit break. Battle a T-Rexaur and use Degenorator. This will instantally kill it and you will get a lot of Exp.
More tricks, tips and cheats for this game are right here - Final Fantasy VIII cheats
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