Unluck. The corruptor of fate can cast bestow curse on any creature it touches as an action, and attack rolls against it have disadvantage.
Corrupting Gaze. Creatures that meet the corruptor of fate's gaze must make a DC 14 Charisma saving throw or have disadvantage on all attack rolls, skill checks and saving throws for 1 minute.
Cunning Action. On each of its turns, the corruptor of fate can use a bonus action to take the Dash, Disengage, or Hide action.
Evasion. If the corruptor of fate is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, the curruptor of fate instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.
Sneak Attack (1/Turn). The corruptor of fate deals an extra 10 (3d6) 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 corruptor of fate that isn’t incapacitated and the corruptor of fate doesn’t have disadvantage on the attack roll.
Innate Spellcasting. The corruptor of fate's innate spellcasting ability is Intelligence (spell save DC 14). The corruptor of fate can innately cast the following spells, requiring no material components:
At will: feather fall, hunter's mark, jump
3/day: misty step, invisibility, spider climb
Multiattack. The corruptor of fate makes three attacks with its longbow or shortsword, and can replace any one of those attacks with a smoke bomb.
Shortsword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.
Longbow. Ranged Weapon Attack: +11 to hit, range 100/600 ft., one target. Hit: 8 (1d8 + 4) piercing damage.
Smoke Bomb (1/turn). The corruptor of fate hurls a smoke bomb up to 20 feet away. The bomb explodes on impact, creating a cloud of black smoke that fills a 10-foot-radius sphere. The area within the cloud is heavily obscured. A strong wind disperses the cloud, which otherwise remains until the end of the corruptor of fate's next turn.
Uncanny Dodge. The corruptor of fate halves the damage that it takes from an attack that hits it. The corruptor of fate must be able to see the attacker.
Description
Corruptors of Fate are yugoloths specially bred for assassinations and tracking down elusive quarries. Their ability with the bow and sword is already prodigious, but they also have strange powers of bad luck, cursing their targets and making them very difficult to engage with directly.
Once a corruptor of fate has been given a quarry, it hunts them over any distance and across any plane of existence.
i really like him, however I wonder how do you enforce the corrupting gaze effectively??
Many creatures have a gaze ability - think Medusa or a Basilisk. Essentially, you can rule that you can avert your gaze which essentially makes you blinded to the target and you have disadvantage on attack rolls to it (which, creatures already have disadvantage to attack it to begin with, so it's moot), or you treat it as an action in which it gazes at you and thus requires the save.