The Shrykull is the personification of the spirits of the dead paramites and scrabs. After receiving the magic scars from BigFAce, Abe was able to transform into a Shrykull by attracting and "morphing" those dead spirits into his body. While in Shykull form, Abe was able to discharge a huge ammount of energy blasts for a brief period of time, usually a few seconds, returning to his normal form after that.
Production design for the Shrykull morphing process:
