Upon casting this spell, the wizard brings into being a shimmering, sword-like plane of force that leaps into the wizard's hands. The sword acts as a +4 weapon in all respects and deals 5d4 points of damage upon hitting a target. Once the spell is cast, the sword will float in the air completely under the caster's control. This does not prevent the caster from doing any other actions during the spell's duration.
Probably the best tanking summon in game; dispatch the hostile counterparts effectively by Death Spell or Death Fog, more ways of kill it includes excessive magic type damages, level drain, ability score drain except int, disintegrate, imprisonment, and all insta-kill effects
Known hostiles capable of using this spell: Lanneth from Neera's quest in Shadows of Amn,