D&D4 Wiki
Knockdown Shot
Ranger Attack 13

One shot topples your foe.

Ranged weapon

Target: One creature of your size or smaller

Attack: Dexterity vs. Reflex

Hit: 2[W] + Dexterity modifier damage, and the target is knocked prone.

Knockdown Shot is an encounter power available to rangers at the 13th level.[PH:109]