Vicious Weapons

Necromancy
Level: Ranger 4
Components: V
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: 1 min./level
Spell Points: 7

The actual appearance of the weapons you wield does not change, but somehow they seem more cruel and dangerous.

For the duration of this spell, every time you successfully deal damage to a creature with a weapon, it takes one point of Constitution damage. Creatures immune to critical hits are immune to the Constitution damage. A critical hit does not multiply the Constitution damage. This effect stacks with the effect of a Wounding weapon.