Blue Skies Monster Farm: Enbanseki no himitsu : Season 2 Episode 48

The berserk Moo travels to Mt. Kyrus to destroy the volcano. The magma, Monol tells them, will cause a chain reaction inside the planet and cause a catastrophic earthquake that will destroy the planet. Monol also says the only way to stop him is with Phoenix's soul, and that it was split into five mystery discs. And those mystery discs are Suezo, Mocchi, Tiger, Golem, and Hare...