Inaccurate?

Curse of Impending Blades

(Spell Compendium, p. 56)

Necromancy
Level: Bard 2, Ranger 2, Sorcerer 2, Wizard 2,
Components: V, S, M, DF,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One creature
Duration: 1 minute/level
Saving Throw: None
Spell Resistance: Yes

You grip the nail-pierced hunk of leather and cast the spell. A small black dagger jets from the tip of the nail and strikes your opponent squarely in the chest.

The target of the spell has a hard time avoiding attacks, sometimes even seeming to stumble into harm's way. The subjects takes a -2 penalty to AC.

The curse cannot be dispelled, but it can be removed with a break enchantment, limited wish, miracle, remove curse, or wish spell.

Arcane Material Component: A nail through a piece of leather.