Spell resistance

Spell Resistance 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 creatureâ€™s spell resistance for the spell to affect that creature. The defenderâ€™s spell resistance is like an Armor Class against magical attacks.

Calculation for defeating a character spell resistance is as follows:


 * Caster Level + 1d20.

Calculation for a character 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 + 2 for every Improved Spell Resistance.