Magmabird

Magmabird (Korean: 마그마 불새, mageuma bulsae) is a Legendary Pet that was released alongside and $π$ during the Secrets of the Lost City update. it has the ability to create Magmabird Feather Jellies near Jellies. Collecting nine of them summons a giant Magmabird that Blasts at a set speed, creating Magma Jellies, and revives both the main and relay Cookies, with the relay receiving 34-35% the original amount.

It is part of the four mystical animals found in the murals of the City of the Millennial Tree. The others being Emerald Golem, $π$, and $π$.

Story
''In distant, distant past, a hot spire of fire was born amidst a horrific volcano eruption. It went up and up but did not die out. Instead, it became a bird. With a powerful cry, this Legendary Pet summons the spirit of Magmabird. Giant Magmabird scorches everything where it goes, but leaves a place for new life instead.''

Trivia

 * Magmabird and Emerald Golem were the first Legendary Pets ever released in Cookie Run: OvenBreak.
 * Mystical animal mural.png the murals found in the City of the Millennial Tree, Magmabird, alongside the other mystical animal Pets, can be found with a question mark in the center. It is unclear what the question mark entails, as it could be a fusion of all the Pets together or an entirely new entity, or any other explanation.
 * This seems to be retconned however, as during the The Truth of the City story, as this question mark was replaced by Millennial Tree Cookie instead.
 * Magmabird's previous ability did not include a revive, instead having the Magmabird Flame Jellies be potions that can restore 1 Energy each, this was however shortly changed following a devastating combination with, where it resulted in Soda Cookie being in his skill all throughout the run, creating an unintentional high score. (Click here for a video demonstrating the combi.)
 * Magmabird, $π$, and $π$ are the only Pets that revive and also give points to the Cookie.
 * Magmabird appears to be a play on the mythical Firebird combined with the lava of the Dragon's Valley.
 * Magmabird was referenced in the story of $π$.
 * Magmabird's internal name is "pet0117".