Talk:Classes/@comment-75.213.141.222-20111007002856/@comment-3236996-20111007163626

I believe it's the same leveling system as in Demon's Souls. If you haven't played that one, you can collect souls from dead enemies and NPCs, which counts as both money and XP. this means that you level up with souls/money, not XP. For each level you acquire, the next one will be more expensive, no matter what stat you put it on.