SR  
Spell resistance (SR) is a special defensive ability. If your spell is being resisted by a creature with spell resistance, you must make a [[Caster Level]] check that is at least equal to the creature’s spell resistance for the spell to affect that creature. The defender’s spell resistance is like an [[/AC|Armor Class]] against magical attacks.

Spell resistance does not stack -- only the highest SR item or spell counts.

Calculation for defeating a character Spell resistance is as follows:

Caster Level + 1d20 + Modifier (2, 4, or 6 for [[Spell Penetration]], [[Greater Spell Penetration]], and [[Epic Spell Penetration]] respectively).

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Calculation for a character's spell resistance is as follows:

* The amount of spell resistance from the spell [[Spell Resistance]] (Caster level + 12)
* The spell resistance for a [[Monk]] (which comes from the feat [[Diamond Soul]]: Monk level + 10 + Modifier {2 for every [[Improved Spell Resistance]]}).
* Racial spell resistance (Character level + 10 for [[/Dark Elf|Dark Elves]] and [[/Deep Gnome|Deep Gnomes]]).