Checking the Pokédex...
“Gengar might be Clefable's shadow. They have nearly identical silhouettes.”
Pokédex Entries
“Its cheeks hold poison sacs. It tries to catch foes off guard to jab them with toxic fingers.”
— Pokémon Diamond
“Inflating its poison sacs, it makes an eerie blubbering sound for intimidation.”
— Pokémon Pearl
“It rarely fights fairly, but that is strictly to ensure survival. It is popular as a mascot.”
— Pokémon Platinum
Base Stats
Chinese Trad. — 11 cards across 11 sets