There is a Legacy version 
here.

Grievous
Item 9Magical Source GM Core pg. 238 2.0Price 700 gp
Usage etched onto a weapon; 
Bulk —
When your attack roll with this weapon is a critical hit and gains the critical specialization effect, you gain an additional benefit depending on the weapon group.  
Axe  You can damage a third creature, with the same restrictions. 
Bow  The Athletics check to pull the missile free is DC 20. 
Brawling  The target takes a –4 circumstance penalty to its save. 
Club  You can knock the target up to 15 feet away. 
Crossbow  If the target of the critical hit is adjacent to a surface, it gets stuck to that surface by the missile, as the 
bow critical specialization. 
Dart  The base persistent bleed damage increases to 2d6. 
Firearm  The target takes a –4 circumstance penalty to its save. 
Flail  You move the target 5 feet. You can't move it away from you, but you can move it in another direction of your choice. 
Hammer  You can also knock the target 5 feet away from you. 
Knife  The target takes a –5-foot status penalty to its Speed while it has the persistent bleed damage. 
Pick  The extra damage from the critical specialization effect increases to 4 per weapon damage die. 
Polearm  You can move the target up to 10 feet. 
Shield  You can knock the target up to 10 feet away. 
Sling  The target also takes a –10-foot status penalty to its Speed for 1 round if it fails the save. 
Spear  The 
clumsy condition lasts for 2 rounds. 
Sword  The target is off-guard until the end of your next turn.