You bring down your quarry and then fix your hunter eyes on another foe

Encounter   ✦     Martial
Free Action      Personal

Trigger: You reduce your quarry to 0 hit points

Effect: Choose one enemy within 5 squares of you. You designate that enemy as your quarry, and you gain combat advantage against it until the end of your next turn

Published in Dragon Magazine 377, page(s) 71.