Originally Posted by
Eladrin
Shintao Monk: Jade Strike
Cost: 10 Ki
Benefit: You perform a melee attack that is anathema to tainted creatures, that increases their physical damage vulnerability by 10% and reduces their fortification by 25%. A successful Will save negates this effect (DC = 10 + Wisdom Modifier + your monk level). This ability only functions on aberrations, extraplanar creatures that are not classified as 'Lawful Outsiders', and undead, and counts as a Light move. Creatures that are both extraplanar and either aberrations or undead receive double this effect. On critical hits, a tainted target will be locked in a tomb of jade on a failed Will save (DC = 10 + Wisdom Modifier + your monk level). Extraplanar Aberrations or Undead must succeed at two consecutive Will saves to avoid their fate.
Edit:
Additional note: For "tainted creatures" definition purposes, "Non-Lawful Outsider Extraplanar creatures" means "things that are extraplanar on Eberron" - if you follow them back to their home plane, they still count.