Counter-step
rogue utility 10
Prerequisite: Athletics trained
Trigger: an enemy enters a square adjacent to you
Target: the triggering enemy
Effect: "You can slide the target 1 square. You then shift up to 2 squares to a square adjacent to the target. You gain combat advantage and a +2 power bonus to all defenses against the target until the end of your next turn."[HotFL:184]
Counter-step is an encounter power available to rogues at 10th level.