Wererat

Medium Humanoid

STR	DEX	CON	INT	WIS	CHA
10 (+0)	14 (+2)	12 (+1)	10 (+0)	10 (+0)	10 (+0)

Keen Smell: The wererat has advantage on Perception checks that rely on smell.
Pack Tactics: The wererat has advantage on attack rolls against a creature if at least one of the wererats allies is within 5 feet of the creature and not incapacitated.
Wolfsbane: Lycanthropes are repelled by the wolfsbane flower. A lycanthrope in hybrid or beast form is poisoned while within 10 feet of a living or dried wolfsbane flower that it can smell. If wolfsbane is applied to a weapon or ammunition, lycanthropes are damaged by the weapon as if it were silver. An application of wolfsbane lasts for 1 hour.

Shortsword (Humanoid or Hybrid Form Only): Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage or 12 (3d6 + 2) piercing damage if the attack is made with advantage.
Hand Crossbow (Humanoid or Hybrid Form Only): Melee or Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit: 5 (1d6 + 2) piercing damage or 12 (3d6 + 2) piercing damage if the attack is made with advantage.
Bite (Rat or Hybrid Form Only): Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage. If the target is a humanoid it makes a DC 11 Constitution saving throw. On a failure it is cursed with wererat lycanthropy.

Shapeshift: The wererat changes its form to a giant rat, a rat-humanoid hybrid, or into its true form, which is a humanoid. While shapeshifted, its statistics are unchanged. It can't speak in rat form. Its equipment is not transformed. It reverts to its true form if it dies.
Frenzied Bite (While Bloodied: The wererat makes a bite attack.