Glacius Duo
Incantation	Glacius Duo (GLAY-see-us DOO-oh)
Type	Charm
Hand Movement	Forwards slash
Light	Blue
Effect	Freezes the target

[Source]

Glacius Duo is a charm used offensively in duelling to freeze a target enemy in ice. It is a more powerful version of Glacius, but is not as powerful as Glacius Tria.

Appearances

• Harry Potter and the Prisoner of Azkaban (video game) (First appearance)