Shadow Infection (3.5e Maneuver)

You will succumb to the embrace of the shadows.

As part of this maneuver, make a single melee attack. If it hits, your target must make a Fortitude save (DC = 13 + your Dexterity or Constitution modifier, whichever is better) or immediately contract shadowfade sickness, which takes effect immediately with no incubation period.

If you use this maneuver on a creature that already has shadowfade sickness and it fails its Fortitude save, its reality loss increases by 10%. If it reaches 100% reality loss and is on a plane coterminous with the Plane of Shadow, it immediately sublimates into haze on the Plane of Shadow, effectively killing it.

This maneuver is a supernatural ability.