Doppelganger Master Assassin
Medium natural humanoid (shapechanger)
Level 19 Lurker XP 2400

Traits

Blend In

While the doppelganger is adjacent to at least one other creature, it can make a Stealth check to become hidden. The doppelganger remains hidden even if it does not have cover or concealment.

Standard Actions

(⚔) Dagger (weapon) ✦ At-Will

Attack: Melee 1 (one creature); +24 vs. AC

Hit: 3d4 + 6 damage.

⚔ Assassin's Strike (necrotic, weapon) ✦ Recharge when the doppelganger uses vanish

Attack: Melee 1 (one creature); +24 vs. AC

Hit: 3d4 + 6 damage plus 4d10 + 16 necrotic damage.

Miss: 3d10 + 12 necrotic damage.

Vanish (illusion) ✦ At-Will

Effect: The doppelganger becomes invisible until the end of its next turn and shifts up to its speed.

Minor Actions

Alter Shape (illusion, polymorph) ✦ At-Will

Effect: The doppelganger alters its physical form to appear as a Medium humanoid and changes the appearance of its clothing and gear until it uses alter shape again or until it drops to 0 hit points. To assume a specific individual's form, the doppelganger must have seen that individual. Other creatures can make a DC 38 Insight check to discern that the form is a disguise.

Skills Bluff +20, Insight +17, Stealth +21
Str 11 (+9)                Dex 25 (+16)                Wis 16 (+12)
Con 22 (+15)                Int 13 (+10)                Cha 23 (+15)

Alignment unaligned        Languages Common
Equipment: dagger .

Published in Monster Vault, page(s) 63.