Colossus

Colossus is the ninth Pokémon Jacob McKnight acquired, and the first Pokémon he caught in Kanto.

Kanto
Caught upon Jacob's arrival in Kanto, Colossus was used to help out against Team Rocket at Mt. Moon.

Personality and characteristics
Colossus is by far the biggest dragon-like Pokémon Jacob has. He is very loyal to his Trainer. Like Jacob at times, Colossus looks very intimidating and serious, but his tough exterior hides a sensitive interior.

Sometimes Colossus will allow children to play on him. Though he has a double weakness to fire and water, he won't hesitate to step up and help his friends.