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Enforced threat
rogue attack 3

Requirement: wielding a crossbow, a light blade, or a sling.

Target: one creature

Attack: Dexterity vs. AC
Ruthless Ruffian: If the target is taking the attack penalty from one of your rattling attacks, you gain combat advantage against the target for this attack.

Hit: "2[W] + Dexterity modifier damage."[MP:75]

Enforced threat is an encounter power available to rogues at 3rd level.

Enforced threat is a rattling power, so if the user is trained in Intimidate, and the target is damaged by the power and not immune to fear, the target takes a −2 penalty to attack rolls until the end of the user's next turn.