Spell Resistence


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Spell Resistance

Spell resistance is a special defensive ability. If the character's spell is being resisted by a creature with spell resistance, the character must make a caster level check (1d20 + caster level) at least equal to the creature's spell resistance rating for the spell to affect that creature.

The defender's spell resistance rating is like an AC against magical attacks.

The Spell Resistance line and descriptive text of a spell tell the character if spell resistance protects creatures from it. In many cases, SR applies only when a resistant creature is targeted by the spell, not when a resistant creature encounters a spell that is already in place.

The terms "Object" and "Harmless" mean the same thing as for saving throws. A creature with spell resistance must voluntarily drop the resistance in order to receive the effects of a spell noted as Harmless without the caster level check described above.


From :

http://www.opengamingfoundation.org/srd/srdmagicoverview.html

I think it explains itself.
 

Here's a quick example:

A 7th level wizard is facing a Mind Flayer and wants to shoot a Magic Missile spell at him.

The Monster Manual says that a Mind Flayer has a Spell Resistance of 25 (this is listed as "Special Qualities: SR 25").

The Player's Handbook says that the Magic Missile spell is subject to spell reistance (this is listed with the spell description: "Spell Resistance: Yes").

So, when the wizard casts the spell, he first rolls a d20+7 (his level). If his result is 25 or higher, the spell takes effect. Otherwise, it does nothing to the mind flayer.

The wizard has to make this check every time he casts an applicable spell at the mind flayer. Note that the feat Spell Penetration would let him add +2 to his roll (so he'd be rolling d20+9) to get through Spell Resistance.
 

Nvvyn said:
Can someone please explain to me, how SR works?

If you play in the FR you could say that the presence of a creature with SR causes a minor distrubance in the Weave thereby granted the creature a limited immunity towards spells.
 

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