ekans
poison
The Pokémon ekans with number #0023 was discovered since the 1 generation. It has a height of 2 m and a weight of 6.9 kg. Its ability is Expidermis and its color is purple.
Source: Youtube; "Pokémon Theme Opening (Multi-Language) | Pokémon the Series" (Channel: "The Official Pokémon YouTube channel")