Decoy (also Dummy) is a technique ability that allows an individual to replace themselves with a clone.
Dummy allows the user to quickly replace themselves with a false, clone version of themselves. When displayed by Asura, it is shown to be able to be done at quick speeds, dissipating into a black mist.
Although a useful ability to trick opponents, a keen eye observer can see the user utilize a dummy. In addition, weapons can also feel no resistance If the dummy is hit through.