I had the same thought. It reminds me of the Mishima Lightening fist or whatever they call it in Tekken. That'd be cool as it'd be tricky to spam that lol.
Free Step Dodge
SweetSauceBoss
Silent-Screams1
Yeah I'm pretty sure it's not a simple input I could see 41236P or 41236P+K being the input are something wild like 2141236P+K