Crit Immunity question

[Runefell]

So if a creature has the trait of 'Immune to Crits (except Bludgeoning and Sonic)', and one of the players has a weapon that deals slashing damage with a Thundering Rune attached, which deals sonic damage, can they crit the creature? Or upon what would normally be a critical hit, would only the sonic damage double, and not the slashing?

[Unicore]

Runefell wrote:

So if a creature has the trait of 'Immune to Crits (except Bludgeoning and Sonic)', and one of the players has a weapon that deals slashing damage with a Thundering Rune attached, which deals sonic damage, can they crit the creature? Or upon what would normally be a critical hit, would only the sonic damage double, and not the slashing?

yes.

[fraserstanton]

Quote:

Immunity to critical hits works a little differently. When a creature immune to critical hits is critically hit by a Strike or other attack that deals damage, it takes normal damage instead of double damage. This does not make it immune to any other critical success effects of other actions that have the attack trait (such as Grapple and Shove).

So that would imply that the sonic damage is not actually doubled. But the deafened effect would be applied.

[Blave]

Immunity to critical hits basically means "Immunity to the extra damage from critical hits". That's why there's also such a thing as resistance to critical hits, like from chain armor specialization.

If that immunity has any exceptions, those damage types will still deal extra damage, as normal.

So in the example given, the sonic damage would be doubled but the slashing damage would not.