Just saw some cool sh-uh, stuff in an online match

My opponent had Kazuya, and near the end of the match, he busted out with 2 full-screen ewgf. The dash had blue electricity covering Kaz (but no ex flash) and it moved like series of wave-dashes (Kazuya wasn’t just stepping, he was crouched and running, kicking up a shitload of dust behind him). I play Kazuya. How the hell did he do that? Was it something like the crazy back-dashes only stick players can pull off in Tekken 6 with stick wobble?

Electricity surrounding him while he was doing mist step ?

It is in fact a wave-dash of sort, and Kazuya is the only character in the game that can do it.