Blade of disaster

Blade of disaster was a high-level conjuration spell that could be learned by wizards.

Effects
The spell summoned a planar rift roughly shaped like a blade. The "blade" appeared at a point of the caster's choosing that was within of them, and lasted up to a minute. This blade could be used to make melee attacks against opponents. It also passes harmlessly through any barriers, up to and including the wall of force spell.

Components
The spell required both verbal and somatic components.