Magikarp 67/112 EX FireRed & LeafGreen Reverse Holo Rarity Error. Early print runs of the card printed the card's rarity as Uncommon. This was corrected in later print runs. : r/PokemonMisprints
How to catch Magikarp/Gyarodos in Pokemon Fire Red - YouTube
Meu magikarp shiny evoluiu no pokemon fire red! | Pokémon Amino
Magikarp (EX FireRed & LeafGreen 67) - Bulbapedia, the community-driven Pokémon encyclopedia
The Player's Magikarp | International Pokédex Wiki | Fandom