Clarissa's Gengar

Clarissa's Gengar  is a Pokémon she obtained in Kanto.

Kanto
Gengar is shown to be a strong Pokemon in Kanto and became one of Clarissa's main powerhouses.

Battle Frontier
TBA

Unova
Gengar made a couple of cameo in Sparks: Black and White. The first was when Clarissa was leaving for Unova. The second was when Team Rocket tried to take over Professor Oak's lab and he was seen defending it alongside Clarissa's Persian, Clarissa's Houndoom and Mason's Feraligatr. The third was when Mewtwo used Protect against one of the Rocket Airships.

Personality
As a Gastly he was shown to be quite gullible and would fall for all the Haunter's pranks. He was also scared of ghost-type (despite being one) and with the aid of Clarissa evolved into Haunter.