If your enemies move too far, you teach them why they shouldn't.

Encounter   ✦     Martial, Weapon
Standard Action      Area burst 1 within 20

Requirement: You must be wielding a bow or a crossbow.

Target: Each enemy in the burst

Attack: Dexterity vs. AC

Hit: 1[W] + Dexterity modifier damage. If the target leaves the area of the burst before the start of your next turn, you can make a ranged basic attack with a weapon against that enemy as a free action. If that attack hits, the target ends its movement.

Published in Dragon Magazine 383, page(s) 51.