Undead has "Immunity to any effect that requires a Fortitude save (unless the effect also works on objects or is harmless)."
but Force Punch is a fortitude partial spell without (object). So, it looks like undead creatures are immune to Force Punch. that sounds weird.
likewise, Sound Burst is also a fortitude partial effect.
Or undead is just immune to the stun of Sound Burst and push of Force Punch, but it still sounds weird for Force Punch.
Sound Burst:
SOUND BURST
School evocation [sonic]; Level bard 2, cleric 2
Casting Time 1 standard action
Components V, S, F/DF (a musical instrument)
Range close (25 ft. + 5 ft./2 levels)
Area 10-ft.-radius spread
Duration instantaneous
Saving Throw Fortitude partial; Spell Resistance yes
You blast an area with a tremendous cacophony. Every creature in the area takes 1d8 points of sonic damage and must succeed on a Fortitude save to avoid being stunned for 1 round. Creatures that cannot hear are not stunned but are still damaged.
Force Punch:
FORCE PUNCH
School evocation [force]; Level magus 3, sorcerer/wizard 3
Casting Time 1 standard action
Components V, S
Range touch
Target creature touched
Duration instantaneous
Saving Throw Fortitude partial; Spell Resistance yes
This spell charges your hand with telekinetic force. Your successful melee touch attack deals 1d4 points of force damage per level (maximum 10d4) and causes the target to be pushed away from you in a straight line up to 5 feet per two caster levels. For every size category of the target above Medium, reduce the distance pushed by 5 feet (–5 feet for Large, –10 feet for Huge, –15 for Gargantuan, and –20 feet for Colossal) to a minimum of 0 feet. A successful Fortitude save negates the movement but not the damage.
undead traits:
Traits: An undead creature possesses the following traits (unless otherwise noted in a creature's entry).
No Constitution score. Undead use their Charisma score in place of their Constitution score when calculating hit points, Fortitude saves, and any special ability that relies on Constitution (such as when calculating a breath weapon's DC).
Darkvision 60 feet.
Immunity to all mind-affecting effects (charms, compulsions, morale effects, patterns, and phantasms).
Immunity to bleed, death effects, disease, paralysis, poison, sleep effects, and stunning.
Not subject to nonlethal damage, ability drain, or energy drain. Immune to damage to its physical ability scores (Constitution, Dexterity, and Strength), as well as to exhaustion and fatigue effects.
Cannot heal damage on its own if it has no Intelligence score, although it can be healed. Negative energy (such as an inflict spell) can heal undead creatures. The fast healing special quality works regardless of the creature's Intelligence score.
Immunity to any effect that requires a Fortitude save (unless the effect also works on objects or is harmless).
Not at risk of death from massive damage, but is immediately destroyed when reduced to 0 hit points.
Not affected by raise dead and reincarnate spells or abilities. Resurrection and true resurrection can affect undead creatures. These spells turn undead creatures back into the living creatures they were before becoming undead.
Proficient with its natural weapons, all simple weapons, and any weapons mentioned in its entry.
Proficient with whatever type of armor (light, medium, or heavy) it is described as wearing, as well as all lighter types. Undead not indicated as wearing armor are not proficient with armor. Undead are proficient with shields if they are proficient with any form of armor.
Undead do not breathe, eat, or sleep.
Both effects do damage to undead, so don't worry about that.
Sound Burst doesn't stun undead, since skeletons don't have eardrums and mummies don't feel pain, but it still does damage, that makes sense.
Force Punch is one of those effects where the way it's written implies something that doesn't make a lot of sense; that is that that undead are immune to the pushing effect. A reasonable GM could rule that there's no reason you can't force punch objects (and thus also undead), but you'd have to figure out what would happen in place of the fort save that cannot be attempted.
I agree that "you can't force push undead" sounds weird.
I agree that Force Punch should effect undead, although I can think of some reasons they didn't apply it to objects. The real intent for the undead exception is that they are only affected by fortitude save effects that don't depend on biological function. The object tag is a good proxy for that, but does seem to cause issues in these edge cases.
I would generally apply it under the assumption that the damage works, but the fort save auto fails. The damage is a separate effect from the second effect of each spell, and it doesn't require the fort save to occur.
...which is a bit weird for the punch. The sound burst makes sense, but the punch was more 'apply a big force, and the fort save was for the creature to brace itself against the blast'. But eh- RAW.
I would generally apply it under the assumption that the damage works, but the fort save auto fails. The damage is a separate effect from the second effect of each spell, and it doesn't require the fort save to occur.
...which is a bit weird for the punch. The sound burst makes sense, but the punch was more 'apply a big force, and the fort save was for the creature to brace itself against the blast'. But eh- RAW.
Indeed, and while it may be a little weird I also don't see it as a big enough problem to justify changing it either.
If anything, Force Punch should probably be a reflex save to brace yourself so you don't move more than a Fort save, but whatever.
I agree that Force Punch should effect undead, although I can think of some reasons they didn't apply it to objects. The real intent for the undead exception is that they are only affected by fortitude save effects that don't depend on biological function. The object tag is a good proxy for that, but does seem to cause issues in these edge cases.
I would write a (object) on it with additional description says "object larger than colossal are not affected by the push effect".
