Willpower is the governing Attribute for Alteration, Destruction, Mysticism, and Restoration. It affects:
- Your ability to successfully cast spells of any College. This includes Conjuration and Illusion, even though they are 'governed' by Intelligence and Personality respectively (this just means that, if raised, they give bonuses to raising those stats when leveling up).
- Your ability to innately resist Paralyze and Silence magic.
- Your maximum Fatigue.