You strike before your foe even realizes that you are a threat.

Encounter   ✦     Martial, Weapon
Immediate Reaction      Melee 1

Requirement: You must be wielding a light blade.

Trigger: An enemy enters a square within 3 squares of you.

Effect: You shift up to 2 squares to a square adjacent to the triggering enemy and make the following attack with combat advantage.

  Target: The triggering enemy

  Attack: Dexterity vs. AC

  Hit: 1[W] + Dexterity modifier damage, and the target takes a -2 penalty to attack rolls until the end of your next turn.

Published in Into the Unknown: The Dungeon Survival Handbook, page(s) 66.