This is a technique that can only be used in enclosed places. In an enclosed area it is easy to create an echo using a single soundwave. The echo multiplies and bounces back to user, as they absorb them to multiply their power. While this technique makes user faster and gives them a boost in power, the effects it has on the body is dangerous. 

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.