cath

In Nanatsu no Taizai, Cath's appearance varies depending on his developmental stages. Initially, he is a small white cat with only a head and tail. After devouring part of Chaos, he grows, gaining a long, three-pronged tail and sharp fangs. In his final form, Cath transforms into a gigantic, lynx-like creature with eight legs, red eyes, and a dotted pattern across his body.
In detail:
Initial: Small white cat with head and tail.
After eating Chaos: Grows, gaining a long tail with three points, white eyes, a large mouth with sharp fangs and a long tongue.
True Form: A gigantic lynx-like creature with eight legs, red eyes, pointed ears, and a spotted pattern across its body.

Cath, Arthur's cat in "The Seven Deadly Sins," is described as sadistic and destructive, despite his cute and innocent appearance. He is a monstrous creature who seeks the power of Chaos and whose ultimate goal is to destroy all life.
Details about Cath's personality:
Initially, it looks like a cute and innocent cat:
Its appearance of a small white cat with a tail is deceiving.
Sadistic and power-hungry:
Cath is a monster who revels in destruction and pain, craving the power of Chaos.
Destroyer of life:
Merlin describes Cath as the "Destructive Will of Chaos", indicating his desire to end all life.
Relationship with Arthur:
Although she presents herself as Arthur's pet, Cath is using the King to achieve her destructive goals.
Based on Welsh mythology:
Cath Palug is based on a creature from Welsh mythology associated with King Arthur. In the legend, she is a monstrous cat that haunts the Isle of Anglesey until she is hunted by Kay.

Cath Palug, Arthur Pendragon's "pet" in Nanatsu no Taizai, possesses remarkable abilities, including energy manipulation, telekinesis, telepathy, and regeneration, according to the Nanatsu no Taizai Wiki. Additionally, he can manipulate reality and seeks to absorb the power of Chaos to destroy everything.
Cath Palug's Powers and Abilities:
Telekinesis: Ability to move objects with the mind.
Telepathy: Ability to communicate telepathically and read minds.
Energy Manipulation: Ability to control and manipulate different forms of energy.
Regeneration: Ability to quickly heal from injuries.
Reality Warping: Ability to alter reality around you.
Chaos Quest: Cath Palug wishes to absorb the power of Chaos to become the supreme entity and destroy everything.
Other Features:
Origin: Cath Palug is a creature created by Chaos, with the purpose of destruction.
Relationship with Arthur: Initially, Cath Palug was Arthur's pet, but their relationship evolved into one of dependence and manipulation.
Personality: Cath Palug is a nihilist and seeks the destruction of all things, believing that everything is doomed to failure.