This pokemon is all of the above: Number 140, Number 390, and Number 250.
#140 Kabuto, in the National and Kanto Pokédex #140 Machop, in the Johto Pokédex #140 Feebas, in the Hoenn Pokédex #140 Mantyke, in the Sinnoh Pokédex #390, Chimchar, in the National Pokédex #250 Ho-Oh, in the National Pokédex #250 Mew, in the Johto Pokédex aren't i amazing?