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Circling predator
rogue attack 7

Requirement: wielding a light blade

Target: one creature

Attack: Dexterity vs. AC

Hit: "1[W] + Dexterity modifier damage."

Effect: you can shift 1 square and must end adjacent to the target. Then make a secondary attack against it.

Secondary Attack: Dexterity vs. AC

Hit: 1[W] + Dexterity modifier damage, and you gain combat advantage against the target until the end of your next turn.[MP:78]

Circling predator is an encounter power available to rogues at 7th level.