Grand Kai is one of the highest authorities in Universe 7 for Dragon Ball. He's the king who directly overseers the 4 Kais, however he is still subservient to the 4 Supreme Kais and their overseer. Unlike many of the other Shin-Jin, he takes a far more casual and lighthearted approach to his position. Acting much like a grandfatherly figure rather than an authoritarian.
Powers and Stats
Tier: High 5-A
Name: Grand Kai
Origin: Dragon Ball
Powers and abilities: Superhuman Physical Characteristics, Martial Arts Mastery, Flight, Chi Manipulation (Can be used defensively and offensively, to strengthen his skin or to fire ki blasts, which can home in on targets, and form defensive barriers), Likely Self-Sustenance (Type 1)
Attack Potency: Dwarf Star level (Far more powerful than the likes of anime King Kai)
Lifting Strength: Class G
Striking Strength: Dwarf Star Class
Durability: Dwarf Star level (Shouldn't have much difficulty taking on his servants)
Stamina: Very high
Range: Standard melee range. Planetary with ki control.
Standard Equipment: None notable
Intelligence: Gifted (Monitors the Kais and has to overwatch the entire universe. Known for having an invaluable knowledge of combat, capable of training the greatest warriors in Universe 7. However his attitude is rather silly and eccentric)
Weaknesses: None notable
Note 1: While he was mentioned in the manga and designed by Toriyama, he only directly made an appearance within the anime and movies.
Note 2: Not to be confused with his superior, Grand Supreme Kai.