Generation Vi
Gooey
Contact with the Pokémon lowers the attacker’s Speed stat.
Detailed Effect
Lowers attacking Pokémon's Speed by one stage on contact.
Pokémon With Gooey
7 canonical Pokémon forms can have this Ability.
Generation Vi
Contact with the Pokémon lowers the attacker’s Speed stat.
Lowers attacking Pokémon's Speed by one stage on contact.
7 canonical Pokémon forms can have this Ability.
Wiglett 
Wugtrio 
Goomy 
Sliggoo 
Goodra 
Hisuian Sliggoo 
Hisuian Goodra