Gems, fatigue and increasing magic levels

[Kalin]

No, I think in the above case, that particular Air mage will explode in blood... What they are saying is that no one particular spell will cost more than 200 fatigue, even if it is listed as 700. In your example, your mage would end up at 299 fatique (assuming 0 encumberance), and would take 99 damage.

The reason casting fatigue seems to "stop" at 200 is because everying above 200 automatically goes to your health.