Akila the Pack Leader

Regeneration. Akila regains 2 hit points at the start of her turn if she has at least 1 hit point. If Akila takes damage from a silvered weapon, this trait doesn't function for the next hour.

Shapechanger. Akila can use her action to polymorph into a wolf-humanoid hybrid or into a wolf, or back into its true form, which is humanoid. Her statistics are the same in each form. Any equipment she is wearing or carrying isn't transformed. Akila reverts to her true form if she dies.

Keen Hearing and Smell. Akila has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Multiattack. (Humanoid or Hybrid Form Only). Akila makes two attacks: two with her greatsword (humanoid form) or one with her bite and one with her claws (hybrid form). She can replace her bite attack with a use of triple bite if it is available. 

Bite (Wolf or Hybrid Form Only). Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 56 (12d8 + 2) piercing damage. If the target is a humanoid, it must succeed on a DC 12 Constitution saving throw or be cursed with werewolf lycanthropy.

Claws. (Hybrid Form Only). Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 20 (5d6 + 2) slashing damage.

Greatsword (Humanoid Form Only). Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (2d6 + 2) slashing damage.

Triple Bite (Wolf or Hybrid Form Only, Recharge 4-6). Akila makes up to three bite attacks this turn though each bite attack must target a different creature.