Creature Sense

Zero is aware of the presence of creatures within 1 mile of it that have an intelligence score of 4 or higher.  It knows the distance and direction to each creature, as well as each creature's Intelligence score, but can't sense anything else about it.  A creature protected by a mind blank spell, a nondetection spell, or similar magic can't be perceived in this manner.

Blessing of the Pumpkin King

When Zero reduces an enemy to 0 hit points, Zero gains 5 temporary hit points

Shadow Blend

While in dim light or darkness, Zero can use a bonus action to become invisible.  The invisibility lasts until Zero uses a bonus action to end it or until the demon attacks, is in bright light, or is incapacitated.

Multiattack

Zero makes two bite attacks and one bark attack per action 

Bite.  Melee Weapon Attack: +7 to hit, reach 5 ft, 1 target, Hit: 15 (2d10 + 4) piercing Damage.

Bark. Ranged Weapon Attack. +7 to hit, reach 5ft, 1 target, Hit: 11 (2d6 + 4) thunder Damage.

Shadow Blend

While in dim light or darkness, Zero can use a bonus action to become invisible.  The invisibility lasts until Zero uses a bonus action to end it or until the demon attacks, is in bright light, or is incapacitated.