I'm not entirely not sure I understand how spell resistance works.
If somebody has spell resistance, you first roll to see if you overcome the spell resistance (caster level check) and THEN, if spell resistance has been overcome, the players roll normally to see if the spell hits/affects them?
So basically, it adds one additional roll that the caster must overcome?
If I cast fireball, I must first roll to over come spell resistance.
If I overcome spell resistance, then the opponent rolls to make the reflex save?
The caster level check to overcome spell resistance is 1d20 + caster level.
So if an enemy has SR 6, then a 4th lv Wizard would only have to roll a 2 to overcome that SR?
That seems too easy to overcome.
Am I missing an important detail?
I'm not entirely not sure I understand how spell resistance works.
If somebody has spell resistance, you first roll to see if you overcome the spell resistance (caster level check) and THEN, if spell resistance has been overcome, the players roll normally to see if the spell hits/affects them?
So basically, it adds one additional roll that the caster must overcome?
If I cast fireball, I must first roll to over come spell resistance.
If I overcome spell resistance, then the opponent rolls to make the reflex save?The caster level check to overcome spell resistance is 1d20 + caster level.
So if an enemy has SR 6, then a 4th lv Wizard would only have to roll a 2 to overcome that SR?
That seems too easy to overcome.
Am I missing an important detail?
You got it. As far as too easy to overcome, there are very few critters with an SR below 11.
For spells that require an attack roll, you have to hit before rolling SR.
Nope you have it all correct. SR isn't always difficult (though at first level that pagawpi is going to be a problem for a spell caster), but always must be checked for.
Also not all spells have to test for spell resistance -- Acid Arrow doesn't for example.
For spells that require an attack roll, you have to hit before rolling SR.
So first you'd roll an attack roll and then, if successful, you'd roll SR?
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There are a few ways around SR as well. First, the Spell has to e directly affecting the target for it to apply. If you cast a Lightning Bolt to blow up a barrel of oil, and the oil booms hitting targets, they do not get Spell Resistance, because the spell was not affecting them. If, for example, you cast Light on a stone, and than someone picks up the Stone that has SPell Resistance, the stone does not go out, or have a chance to.
Also, for Conjuration Creation effects, once the effect is made, Spell Resistance does not apply. Lets say you use a Conjuration Creation spell to create a large rock and throw it at someone with spell resistence. The magic is finished as soon as the rock is made, after which it is a normal rock. So no SR, Antimagic, etc. . . Conjuration Calling and Healing (if instantanious), are also not affected by SR, unless it is exactly when the spell is cast.
Is having a spell resistance of 23 at level 13 low? Seems low to me. The caster would have to roll a 7 or higher to overcome the SR right?
Also, would SR from different sources stack?
Is having a spell resistance of 23 at level 13 low? Seems low to me. The caster would have to roll a 7 or higher to overcome the SR right?
Also, would SR from different sources stack?
The caster lv check to overcome SR = caster level + 1d20
Therefore, a lv 13 character would have to roll a 10 to overcome SR 23.I think that's pretty decent SR since there's a 45% chance of failing that roll.
Good question about stacking.
Anybody?
No, they do not. However, in later 3.5 books, there are a few items and feats that allowed you to add to existing SR. Usually very rare/restrictive/costly, though.
Any idea where it would state that? Not that I don't trust you, I just like to see stuff in writing. 8^)
Can you give an example of how this would come up?
One reason it shouldn't stack is that SR is very similar to AC.
And you usually stack bonuses/modifiers. SR isn't a bonus, it's a base stat. Would an item that gives you an 18 Str give you Str 36 if you already had Str 18? Do 2 suits of plate armor stack if you put one over the other?
Can you give an example of how this would come up?
One reason it shouldn't stack is that SR is very similar to AC.
And you usually stack bonuses/modifiers. SR isn't a bonus, it's a base stat. Would an item that gives you an 18 Str give you Str 36 if you already had Str 18? Do 2 suits of plate armor stack if you put one over the other?
I could come up with several, here's one.
A monk gets SR as a class ability at 13 then someone casts the spell resistance spell on said monk, all the while wearing a mantle of spell resistance. 3 different sources, what would his SR be? Would only the highest SR be active?
Oh, AC from different sources do stack.
I could come up with several, here's one.
A monk gets SR as a class ability at 13 then someone casts the spell resistance spell on said monk, all the while wearing a mantle of spell resistance. 3 different sources, what would his SR be? Would only the highest SR be active?
Oh, AC from different sources do stack.
AC is an accretion of bonuses added to a base of 10. The different sources provide a bonus to AC, be it armor bonus, shield bonus, deflection bonus, etc.
SR's overlap, so only the highest SR would be active.
A Monk's SR is a base of 10 + monk level.
The Spell Resistance spell is a base of 12 + caster level.
Mantle of Spell Resistance grants SR 21.
No bonuses to existing SR there, just flat SR numbers. Compare with Resist Energy.
Edit: Or just read Beckett's post, it's easier on the eyes.
Remember also that SR applies to ALL spells that have "SR: Yes" in their stat blocks. This includes beneficial spells such as bull's strength, cure X wounds, heal, and so on. You can voluntarily lower your SR, but it takes a standard action, only lasts 1 round, and completely lowers your SR for ALL spells that affect you during that round.
SR is as much a curse as a blessing. I generally avoid it if I can.
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SR is as much a curse as a blessing. I generally avoid it if I can.
Agreed!
Luckily, however, Spell Resistance does not interfere with your own spells. (*)Therefore, if you are the only serious caster in the party, and you are a cleric, casting spell resistance (which provides a quite good SR: 12+spell level) on yourself might be a very valuable and effective tactic.
I've seen this often in 3.5 -- I assume it would be of similar effectiveness in PF. It is never completely free of risks, though, so caution is necessary.
(*) Reference (from the PF Glossary):
A creature's spell resistance never interferes with its own spells, items, or abilities.
SR is as much a curse as a blessing. I generally avoid it if I can.
I can see your point, but damn, it'd be nice to avoid a Maze spell every now and then.
Zo