Ythogtha is one of the sons of Cthulhu and its mate Idh-yaa. He is absolutely monstrous in stature, as a single one of his claws has been mistaken for a gargantuan head. Ythogtha is imprisoned in the Abyss of Yhe and is served by the planarian-like yuggs.
Powers and Stats
Tier: At least Low 6-B, likely far higher
Origin: Cthulhu Mythos
Age: Likely billions of years
Powers and Abilities: Superhuman strength, speed, agility, reflexes, endurance, durability, Invulnerability, Immortality (Types 1, 3, and 4), Regeneration (At least Low-Godly), Flight, Telepathy, Magic, etc.
Lifting Strength: At least Class T via sheer size
Striking Strength: At least Small Country Class via sheer size
Durability: At least Small Country level via sheer size, likely far higher (Great Old Ones are not made of conventional matter or energy, and are thus nearly impossible to actually hurt by most means)
Range: Likely planetary
Standard Equipment: None