Editing Warforged Infiltrator

Armor Class 16 (composite plating, natural armor) Hit Points 78 (12d8 + 24) Speed 30 ft.
STR 11 (+0) DEX 18 (+4) CON 14 (+2) INT 13 (+1) WIS 11 (+0) CHA 10 (+0)
Saving Throws Dex +7, Int +4 Skills Acrobatics +7, Deception +3, Stealth +10 Damage Immunities poison Condition Immunities charmed, disease, exhaustion, frightened, poisoned Senses darkvision 60 ft., passive Perception 10 Languages Common, one other language Challenge 8 (3,900 XP)
Integrated Camouflage. The Warforged Infiltrator has advantage on Dexterity (Stealth) checks while in dim light or darkness.

Assassinate. During its first turn, the Warforged Infiltrator has advantage on attack rolls against any creature that hasn't taken a turn yet. Any hit the infiltrator scores against a surprised creature is a critical hit.

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

Sneak Attack (1/Turn). The Warforged Infiltrator deals an extra 17 (5d6) 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 infiltrator that isn't incapacitated and the infiltrator doesn't have disadvantage on the attack roll.

Actions

Multiattack. The Warforged Infiltrator makes two integrated blade attacks.

Integrated Blade. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage, and the target must succeed on a DC 15 Constitution saving throw or take 24 (7d6) poison damage. On a successful save, the target takes half as much damage.

Hand Crossbow. Ranged Weapon Attack: +7 to hit, range 30/120 ft., one target. Hit: 7 (1d6 + 4) piercing damage.