Fairy Leviathan

Fairy Leviathan, known in Japanese as "Yōshō" Leviathan (「妖将」レヴィアタン, 「Yōshō」Reviatan, Yōshō literally meaning Siren General), or simply Leviathan, is a member of the Four Guardians in the Mega Man Zero series. She serves as a secondary antagonist in the first two games, and is briefly a supporting character in Mega Man Zero 3. Leviathan was created from X's DNA data to aid humans resettling the Earth after the destruction of the Elf Wars. She is a military general of Neo Arcadia, commanding the Deep Sea Squadron (冥海軍団 Meikai Gundan, literally "Army of the Dark Oceans"). She wields a spear called Frost Javelin (フロストジャベリン Furosuto Jaberin). Leviathan lives on through Biometal Model L in the Mega Man ZX series.