Killing storm
rogue attack 29
Target: each enemy in burst you can see
Attack: Dexterity vs. AC
Hit: "4[W] + Dexterity modifier damage, and the target moves its speed away from the burst's origin square. The target grants combat advantage (save ends)."
Miss: "Half damage."[MP2:71]
Killing storm is a daily power available to rogues at 29th level.