Tasha

"So here's how it's going to be, you can walk away or you can join my pack"

- Tasha

Tasha was a pureblood werewolf. She was bitten by her sister, Kate, following her being in a car crash to prevent her from dying.

Season 10
Tasha's her new state corrupted her. Kate discovered that Tasha murdered someone. She tried to help but Tasha carried on killing people for food. Following a confrontation with Sam and Dean, she began to build her own pack by turning two men, and tried to force Kate to kill Sam. Kate realized she had no choice, and killed her with a silver blade.

Powers

 * Super Strength - As a werewolf, Tasha was very strong, and was capable of overpowering Sam with one hand.
 * Invunerability - As a werewolf, only silver could kill Tasha.
 * Super Speed - Tasha was able to move incredibly fast.
 * Transformation - As a pureblood, Tasha could transform independently with the moon.
 * Claws - As a werewolf, Tasha had razor sharp claws which she used to kill.
 * Fangs - As a werewolf, Tasha had razor sharp fangs which she used to eat her victims' hearts.
 * Regeneration - As a werewolf, Tasha could regenerate wounds that could normally kill humans. She even healed her injuries from the car crash before she became a werewolf.
 * Infectious Bite - As a werewolf, Tasha could infect others with the curse.