Chitters, Swamp Raccoon Familiar (Imp)

Eldritch Mischief (1/Long Rest): Can cast Mage Hand as a raccoon-shaped spectral paw, but only to steal, distract, or poke things

Bog Sense: Advantage on Perception checks involving smell or hidden objects in swampy terrain.

Shapechanger: Chitters can use his action to polymorph into a beast form that resembles a swamp raccoon, rat, spider, or raven (uses imp stats in all forms).

Devil's Sight: Magical darkness doesn't impede Chitters' darkvision.

Magic Resistance: Chitters has advantage on saving throws against spells and other magical effects

Variant Familiar: Chitters can serve as a familiar. While bonded, Gregg can communicate telepathically with him and deliver touch spells through him.

Sting (Beast Form Only): 

• Melee Weapon Attack: +5 to hit
• Reach: 5ft
• One target
• Hit: 5 (1d4 + 3) piercing damage  
• The target must succeed on a DC 11 Constitution saving throw or take 10 (3d6) poison damage

Invisibility: Chitters magically turns invisible until he attacks or uses a trait. Anything he is wearing or carrying is invisible with him.

Distracting Nip: When a creature within 5 ft. of Chitters targets Gregg with an attack, Chitters can snap at their bootlaces or belt. The attacker must make a DC 10 Dexterity saving throw or suffer disadvantage on the attack roll.