It looks like the golduck on kammados kimono has exaggerated features to make it look scary. It kinda looks like a kappa(Japanese folklore river monster) the way it is designed. : r/PokeLeaks
Golduck | Wiki | Pokémon Amino
One more dex entry down! Kappa : r/twitchplayspokemon
Pokemon Golduck 61
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LP Pokemon (3rd 1999-2000) GOLDUCK Card FOSSIL Set 35/62 Australia Red Logo Pack | eBay
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Kappa Golduck | Pokemon Wack Wiki | Fandom
Golduck (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia