Doppelganger

Medium monstrosity (shapechanger), neutral

Armor Class 14

Hit Points 52 8d8+16

Speed 30ft

STR

11 0

DEX

18 +4

CON

14 +2

INT

11 0

WIS

12 +1

CHA

14 +2

Skills Deception +6 , Insight +3

Condition Immunities Charmed

Senses Darkvision 60ft, Passive Perception 11

Languages Common

Challenge 3 (700 XP)

Shapechanger The doppelganger can use its action to polymorph into a Small or Medium humanoid it has seen, or back into its true form. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies. Ambusher The doppelganger has advantage on attack rolls against any creature it has surprised. Surprise Attack If the doppelganger surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 10 3d6 damage from the attack.

Actions

Multiattack The doppelganger makes two melee attacks. Slam Melee Weapon Attack: +6 to hit, reach 5ft, one target. Hit: 7 1d6+4 bludgeoning damage. Read Thoughts The doppelganger magically reads the surface thoughts of one creature within 60 feet of it. The effect can penetrate barriers, but 3 feet of wood or dirt, 2 feet of stone, 2 inches of metal, or a thin sheet of lead blocks it. While the target is in range, the doppelganger can continue reading its thoughts, as long as the doppelganger's concentration isn't broken (as if concentrating on a spell). While reading the target's mind, the doppelganger has advantage on Wisdom (Insight) and Charisma (Deception, Intimidation, and Persuasion) checks against the target.