Xarann A'Daragon

Medium Humanoid (Any Race), Neutral Evil

STR
11 (+0)
DEX
16 (+3)
CON
14 (+2)
INT
13 (+1)
WIS
11 (+0)
CHA
10 (+0)
Assassinate.

During its first turn, Xarann has advantage on attack rolls against any creature that hasn't taken a turn. Any hit the assassin scores against a surprised creature is a critical hit.

Evasion.

If Xarann is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, the assassin instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Sneak Attack (1/Turn).

Xarann deals an extra 14 (4d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the assassin that isn't incapacitated and the assassin doesn't have disadvantage on the attack roll.

Special Equipment.

Xarann wears a piwafwi, a drow-made cloak of elvenkind. It loses its magic if exposed to sunlight for 1 hour without interruption.

Actions

Multiattack.

Xarann makes two shortsword attacks.

Shortsword.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage, and the target must make a DC 15 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one.

Light Crossbow.

Ranged Weapon Attack: +6 to hit, range 80/320 ft., one target. Hit: 7 (1d8 + 3) piercing damage, and the target must make a DC 15 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one.

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Xarann A'Daragon

Source: Waterdeep: Dungeon of the Mad Mage, p. 145 - Licenses and attribution