In Tekken 7, the fastest moves for every character are 10 frames — with one sword wielding exception. Yoshmitsu’s 1+4, known as “Flash,” beats the standard jab speed, and has quite a lot of versatility in use.
As SutekiChannel demonstrates, this attack comes in two flavors: standard Flash is 6 frames but has almost no range, and No-Sword Stance (or NSS) Flash is 8 frames but has more range. Both versions are combo starting mids. Though the above video demonstrates how Yoshimitsu can interrupt and punish Alisa in particular, the principle is the same for all characters: this swordsman doesn’t have to respect as many strings as other characters do, and NSS Flash in particular is one of the best punishment tools in the game.