The runes you inscribe on the item cause its wielder to move in a blur of speed.

Daily   ✦     Arcane
Minor Action      Melee touch

Target: One weapon or implement

Effect: Until the end of the encounter, the creature wielding the target gains a +3 power bonus to speed.
As a free action, the target's wielder can end the effect when he or she hits a creature using the target in order to take an extra standard action.

Published in Eberron Player's Guide, page(s) 57.