Arcane Fatigue

Type: Flaw
Source: Dragon #333

Conjuring magical energies is especially draining for you.
Prerequisite: Ability to cast arcane spells.
Benefit: Whenever you successfully cast an arcane spell you must immediately make a Fortitude save (DC 10 + spell level). If you fail you become fatigued. If you are fatigued as a result of this flaw, it has no further effect until that condition is removed.

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