The Hell Lancer.

The Hell Lancer, or simply known by fans as Demon Slash Kick, is a move possessed by Kazuya Mishima and is introduced in his appearance in Tekken 4. During the animation, Kazuya will perform a crouch-dash, then leaps forward while delivering a high-flying left kick on the opponent, sending him flying. The command input is f,N,d,D/F+3.

When to use

Up until Tekken Tag Tournament 2, the Hell Lancer isn't a good choice for a combo mix-up, since the attack sends the opponent flying far. In TTT2 though, the move is more often used by experienced players who wish to deal a lot of damage by tag combos due to it being a good launching finisher against an opponent.