Incendiary dagger

Cost: 22 gp
Proficient: +3
Range: 5/10
Weight: 1 lb.

An incendiary dagger features a wavy blade that was forged by tiefling weapon makers using ancient techniques of Bael Turath.

Light Thrown (A basic attack with a light thrown weapon uses your Dexterity. Light thrown weapons don’t deal as much damage as heavy thrown weapons, but some powers let you hurl several of them at once or in rapid succession.).
Off-Hand (An off-hand weapon is light enough that you can hold it and attack effectively with it while holding a weapon in your main hand. You can’t attack with both weapons in the same turn, unless you have a power that lets you do so, but you can attack with either weapon.).
Energized (fire) (When you use an attack power through an energized implement, you gain a +2 bonus to damage rolls if the power has the keyword that matches the implement’s damage type. The bonus increases to +3 at 11th level and +4 at 21st level.).
Unerring (You gain a +1 bonus to attack rolls against Reflex when attacking with an unerring implement.).

Light blade (Light blades reward accuracy as much as force. Pinpoint attacks, lunges, and agile defenses are the strong points of these weapons.).

Published in Dragon Magazine 385, page(s) 49, Mordenkainen's Magnificent Emporium, page(s) 40.