Assassin Whip

Although this seems to be nothing more than a tangled, long-leafed vine, one end has been knotted into a sturdy handle like that of a whip.

Twice per day, you can activate this +1 whip after successfully hitting a Medium or smaller target that is standing on the ground. Doing this causes tendrils of vegetation to spring forth from the ground, entangling the target and dealing 2d6 points of damage per round. This effect lasts for 3 rounds or until the affected creature escapes from the tendrils (a DC 20 Strength check or DC 20 Escape Artist check made as a full-round action).

Prerequisites: Craft Magic Arms and Armor, entangle.

Cost to Create: 2,500 gp (plus 301 gp for masterwork whip), 200 XP, 5 days.

Source: Magic Item Compendium, page 46.