Smashes Objects and Emanates Blast
Chamber Of Secrets
Prisoner Of Azkaban
Goblet Of Fire
Order Of The Phoenix
It is unlocked as a storyline spell in the Hogwarts Castle Defence Against The Dark Lesson in Goblet Of Fire.
The Spell emanates a surge of a blast which smashes up all objects and enemies in vicinity.
It can't be cast up close to a target and spell's colour is orange and the symbol being that of a wand making a blast on an object.
It has no variations or maximums.
Useable even before the Class Of Constant VigilanceEdit
The spell is unlocked in Bart Crouch Jr Mad Eye Moody disguise Defence Against The Dark Arts Class in Year Four in which it must be used to free students pinned down by objects.