Game Cafe Eberron
This byeshk spike can change size and shape into several bladed forms. It is deadly against aberrant creatures.
Enhancement:+2 to attack and damage rolls
Critical: +2d6 damage, +2d10 damage against aberrant creatures.
Property: you gain +1 item bonus to all defenses against all attacks from aberrant creatures.
Power (at will): minor action. Ashurta’s blade takes the shape of a broad sword, dagger, longsword, shuriken, or short sword. It takes on the statistics normal for that weapon until it changes shape into another weapon.
Power (daily): free action. Trigger: you hit with an attack using the weapon. Effect: a target of the attack is dazed until the end of your next turn. An aberrant creature is also restrained and cannot teleport until the end of your next turn.