Sacred 2:Willpower

Willpower Increases resistance against magic spells and additional damage effects (burn, poison, freeze, weaken). Each point of Willpower adds one point to a character's base Spell Resistance Other ways to increase spell resistance include the use of: Using weapons or items which have native Item Modifiers on them such as Spell Resistance X% . Forging Spell Resistance X% into a character's item slots An increase in Survival Bonus which will increase base Spell Resistance How it works Spell Resistance is both a stat & a skill. The stat is based on the characters Willpower stat (so if you have a willpower of 200, you will have a base Spell Resistance of 200 before any other mods are factored in), and it can be increased by a number of means (the +% Spell Resistance mod on items, either native on the item, or forged into items). Spell Resistance is used in a calculation with Spell Intensity (the defender's Spell Resistance v the attacker's Spell Intensity), if the defender "wins" or "succeeds" on this calculation, the attacker's spell's damage is reduced by a % (possibly 30%), if the attacker "wins", their spell damage is not reduced at this point (though it will still be reduced by any resistance or elemental mitigation).