So I have a Kitsune (Sal’awaan) PC in my group who has tried to stay in human form for most of her adventuring career. She has the Feral Vitality feat from lords of wilderness. My question is when she is in human form does she lose her racial ex abilities like Crypt Stalker and acute senses as well as fast healing from feral vitality Feat because they are all extraordinary abilities?
Third party content, for people's reference.
You only lose features that you have because of your form. That's the key part of the polymorph rules.
While under the effects of a polymorph spell, you lose all extraordinary and supernatural abilities that depend on your original form (such as keen senses, scent, and darkvision), as well as any natural attacks and movement types possessed by your original form. You also lose any class features that depend upon form, but those that allow you to add features (such as sorcerers that can grow claws) still function. While most of these should be obvious, the GM is the final arbiter of what abilities depend on form and are lost when a new form is assumed. Your new form might restore a number of these abilities if they are possessed by the new form.
As a human...
- You will lose your bite.
- You will lose low-light vision (since you would lose darkvision if you had it).
- You will keep your Acrobatics bonus.
- You will keep your Feral Vitality fast healing.
- There's nothing in the Crypt Stalker prestige class that is form-based for kitsune; as such, you would keep all of those features.
- You'd even keep the ability to cast your spells.
As a fox (if you have the Fox Shape feat)...
- You'll keep your bite, but it will be reduced in damage.
- You will keep low light vision and gain scent.
- Your Acrobatics bonus will not only remain, but also gain the situational improvement (+4 to jumping).
- You will keep Feral Vitality.
- Again, there are no (Ex) features that you would lose in fox form. The Slay the Undead features might be difficult to use without the ability to wield your weapon; but you'd still have those features.
- You'll be unable to cast while in fox form. The Natural Spell feat requires the wild shape class feature (eg, a druid), and the Fox Shape feat doesn't count as an alternate prerequisite.