Doppelganger

Gray, featureless humanoids that delight in sowing chaos.

AC 12, HP 20, ATK 1 dagger (close/near) +2 (1d4), MV near, S 1, D 2, C 2, I 1, W 0, Ch 4, AL C, LV 4

Change Shape. In place of attacks, transform into any similarly-sized humanoid.

Telepathy. Can secretly hear the surface thoughts of all humanoids within near.