Homebrew

Traits

Ethereal Sight. The ghost can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa.   Incorporeal Movement. The ghost can move through other creatures and objects as if they were difficult terrain. It takes 5 ( 1d10 ) force damage if it ends its turn inside an object.   Keen Hearing and Smell. Rigger has advantage on Wisdom (Perception) checks that rely on hearing or smell.   Pack Tactics. Rigger has advantage on attack rolls against a creature if at least one of the dog's allies is within 5 feet of the creature and the ally isn’t incapacitated.   Silent. Rigger has advantage on stealth

Actions

Withering bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 17 (2d6 + 3) necrotic damage.   Etherealness. The ghost enters the Ethereal Plane from the Material Plane, or vice versa. It is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can't affect or be affected by anything on the other plane.     Keep Away. Rigger can use his action to go incorporeal as if using the disengage action. He cannot be touched during this time, but cannot touch anything either.   Shake. Rigger can use his action to shake his fur. Spectral hair flies into the air, causing disadvantage on attacks that require sight within 5ft of him. (Lasts 2 rounds)