I know this could be a dumb question, but, if I cast, let's say, frostbite, and I use our against a creature with SR, do I need to check for SR for every hit or just the first time I hit?
First time. When you cast the spell is really when you do your caster-level check to figure out how "strong" your casting really is. From there on, you're just applying that same spell.
Think of it like casting fireball on a group of bad guys with different SR levels. You do one check for your spell and use that number for all targets.
Anguish, is that so ? Most of my DM's have the party wizard check against each target separately. Do you have a rules reference I can show them ?
Anguish, is that so ? Most of my DM's have the party wizard check against each target separately. Do you have a rules reference I can show them ?
Core rule book page 565...
"Check spell resistance only once for any particular casting of a spell or use of a spell-like ability."
There's more to that section but none of it in any way negates that line... it just clarifies additional details on how SR works.
You're doing a caster-level check to see how strong you are. You don't vary in strength depending on target; there aren't "weak" spots in your fireball.
Another good example of this is greater dispel magic, where it says your dispel check (just a caster-level check) gets applied to every effect it can work on. No rolling over and over again.
Sorry for the necroposting, but I have another question about that: if I have 2 targets, let's say target A and target B, and I cast frostbite, what if I don't overcome the SR of target A?
Do I consume one touch of I hit but cannot overcome the SR? And what happen to my multiple touches if I continue to attack target A even if I didn't overcome his SR? Are them burned anyway with every touch? And, for answers to my question, it's correct to say that when I roll for SR that value must be applied forfour A and for B, without reroll?
Sorry for the necroposting, but I have another question about that: if I have 2 targets, let's say target A and target B, and I cast frostbite, what if I don't overcome the SR of target A?
Do I consume one touch of I hit but cannot overcome the SR? And what happen to my multiple touches if I continue to attack target A even if I didn't overcome his SR? Are them burned anyway with every touch? And, for answers to my question, it's correct to say that when I roll for SR that value must be applied forfour A and for B, without reroll?
If you don't overcome SR for A, then the spell will not affect A no matter how many times you target him with that casting of the spell. Since a single casting leads to multiple charges, none of those charges will affect target A.
Each time you touch target A, another charge of frostbite is consumed, even if the magic does not affect target A.
No. You roll separately for each individual target you affect with the spell. You roll only once per target per spell though, so if you try to touch a target you failed the check against you don't get to try and overcome the SR again.
When Spell Resistance Applies
Each spell includes an entry that indicates whether spell
resistance applies to the spell. In general, whether spell
resistance applies depends on what the spell does.Targeted Spells: Spell resistance applies if the spell is
targeted at the creature. Some individually targeted spells
can be directed at several creatures simultaneously. In
such cases, a creature’s spell resistance applies only to the
portion of the spell actually targeted at that creature. If
several different resistant creatures are subjected to such a
spell, each checks its spell resistance separately.Area Spells: Spell resistance applies if the resistant
creature is within the spell’s area. It protects the resistant
creature without affecting the spell itself.Effect Spells: Most effect spells summon or create
something and are not subject to spell resistance.
Sometimes, however, spell resistance applies to effect
spells, usually to those that act upon a creature more or
less directly.