Medium Monstrosity, Neutral
AC 16    Initiative +4 (14)
HP 98 (14d10 + 16)
Speed 30 ft.
Mod Save
STR 11 +0 +0
DEX 18 +4 +7
CON 14 +2 +2
Mod Save
INT 12 +1 +1
WIS 16 +3 +3
CHA 18 +4 +7
Skills Deception +9, Insight +3
Resistances Psychic
Immunities Charmed
Senses Darkvision 60 ft., Passive Perception 17
Languages All The doppelganger changelord knows the language of any creature under the effect of its detect thoughts spell, Common
CR 5 (XP 1,800; PB +3)
Traits

Perfect Mimicry. While shapechanged into the form of a creature it can see and within 5 feet of that creature, the doppelganger creates a near-identical duplicate. When a creature targets the doppelganger with an attack or spell, it must first succeed on a DC 15 Wisdom (Insight) or Intelligence (Perception) check or target the mimic’s appearance instead. If the doppelganger has detect thoughts active on the mimicked target, the check is made with disadvantage.

Any creature that is tricked in this way is considered to have the surprised condition until the end of the doppelganger's next turn.

Ambusher. The doppelganger has advantage on attack rolls against creatures it surprises.

Surprise Attack. If the doppelganger hits a surprised creature, it deals an additional 10 (3d6) damage.

Actions

Multiattack. The doppelganger makes two Altered Appendage attacks and uses Unsettling Visage if available.

Altered Appendage. The Doppelganger can quickly change the form of its appendages to perform melee attacks of any variety. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing, bludgeoning, or slashing damage.

Read Thoughts. The doppelganger casts detect thoughts (spell save DC 15) without requiring material components, using Charisma as its spellcasting ability.

Unsettling Visage (Recharge 6). Each creature of the doppelganger’s choice within 15 feet and that can see it must make a DC 12 Wisdom saving throw. On a failed save, a creature is frightened until the end of its next turn. A frightened creature can repeat the save at the end of each of its turns, ending the effect on a success. The effect also ends automatically after 1 minute.

Bonus Actions

Shape-Shift. The doppelganger shape-shifts into a Medium or Small Humanoid, or it returns to its true form. Its game statistics, other than its size,

Shapechanger. The doppelganger  shape-shifts into a Small or Medium humanoid it has seen, or back into its true form. Its statistics, other than its size, remain the same. The transformation includes illusory clothing and gear. If the form mimicked is within 30 feet, the doppelganger may also cast detect thoughts on the target as part of this bonus action.

Cunning Action. The doppelganger can take the Hide or Disengage action as a bonus action.

Lair and Lair Actions

A doppelganger changelord’s prolonged presence twists the psychic fabric of its lair. After establishing a hideout, the area becomes cloaked in psychic camouflage.

Psychic Veil. The lair becomes almost imperceptible to humanoids. Any creature trying to locate the lair must succeed on a DC 14 Intelligence (Investigation) check or unknowingly bypass it.

Warped Perception (While in Lair).

  • Humanoid creatures have disadvantage on Constitution saving throws to maintain concentration.

  • All ranged attacks are made at disadvantage

  • When the doppelganger shapechanges adjacent to a target, any creature affected by the lair’s influence perceives the transformation as instantaneous and cannot discern the doppelganger from the target—even with line of sight to both.

Previous Versions

Name Date Modified Views Adds Version Actions
5/13/2025 5:07:02 PM
3
1
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Habitat: UnderdarkUrban

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