The Shiny rate for Legendary Pokémon is approximately one in 20. When looking for a Pokémon with the best stats, the 100% IV Articuno will have a CP of 1743 in normal weather conditions and 2179 ...

To learn more about Articuno's offensive and defensive type ... Wild Charge Shadow Zapdos with Thunder Shock and Thunderbolt Shiny Articuno in Pokemon GO was released on Articuno Day in July ...