|Romaji||hyoujin no sentsui|
|English||Warhammer of the Ice God|
|Debut (Manga)||Chapter 108|
Malleus Aquilonis (氷神の戦鎚, Warhammer of the Ice God) is an attack spell which crushes the target with a giant mass of ice. The creation and manipulation of ice being the cornerstone of cold-based magic, this is an extremely simple spell, its only real advantage being the massive force it can bring down on the target.