Doppelganger Heritage

One of your parents was a doppelganger, or one or both were half-doppelgangers. You have extremely plain features in your natural form, as if the gods left you unfinished. You gain dark vision. In addition, you can select any ancestry feat from any humanoid ancestry whenever you gain an ancestry feat.
Level 1 Feat - Change Shape
Change Shape (1 action) (arcane, concentrate, polymorph, transmutation) You take on the specific appearance of any Small or Medium humanoid who you have seen and whose appearance you remember. This doesn’t change your Speed or your attack and damage bonuses with your Strikes but might change the type of damage your Strikes deal (typically to bludgeoning).
Level 5 Feat - Innate Mind Reader
You can cast the arcane spell mind reading once per day.
Level 5 Feat - Doppel Claws
Your unarmed strike becomes a natural claw attack. Using your claws attack ends your shape change and reveals your true form. Claws (natural)(agile) 2d4 slashing.
Level 9 Feat - End the Charade
You gain the doppelganger ability 'End the Charade' (reaction) (attack)
Trigger: You are transformed with Change Shape and another creature moves adjacent to you or takes a hostile action against you.
Effect: You revert to your natural form and can make a Strike against the triggering creature. If the creature was unaware you were in disguise, that creature is flat-footed against this attack.