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The ultimate humanoid shapechanger, a doppelganger can be anyone, anywhere, at any time. It's easy to imagine even a single doppelganger being responsible for a plethora of offspring tainted with shapechanging powers.
|Level||Minor Bloodline Traits|
|4th||+2 on Disguise checks|
|8th||Alter self 1/day|
|16th||Detect thoughts 1/day|
|20th||Doppelganger affinity +2|