Well, by the book it's a 2 handed exotic weapon.<br/><br/>When used from surprise, it lets you choke someone you grapple while dealing d6 damage.  (no sneak attack applies.)<br/><br/>The chocking bit follows drowing rules, including that they need to get control of the clinch to breathe.  (OR talk.)<br/><br/>http://www.d20pfsrd.com/equipment---final/weapons/weapon-descriptions/garrote (http://www.d20pfsrd.com/equipment---final/weapons/weapon-descriptions/garrote)<br/><br/>Not the best weapon, then, since yuo need an exotic weapon proficiency, a high CMB, and stealth.