Dopplegangers are a pain.

[EP]

hmm i'm not very familiar with the doppleganger, but can they turn into anything humanoid and medium-sized? like a lizardman?

That's lizardFOLK. You've just insulted the entire lizardwoman population on EN World with that little slip-up.

And yes, they can.

 

[SorvahrSpahr]

my bad, I'd never insult any woman...even if she has scales...

 

[Ravenall Stormborn]

Thanks for the ideas kids.

Storytell, I'm going to take the idea you presented and take it to a new (dangerous) extreme?. Kill everything that's not a doppleganger in hopes of resting the world? Nope.
Kill all other Doppleganger in order to prove my own supremecy and possibly ascend to god of decpetion? Oh yeah.

 

[Ravenall Stormborn]

New Question: Are monstrous humanoids the same as humanoids? Are the legal to shift too?

Edit : And I kepe my natural armor in all forms right?
Edit #2: Oh god. Derro gain +1d6 sneak attack. It's extraordinary, and listed under special attacks, so if i shift to a derro i gain 1d6 sneak?