Shift + Left Click Long Blade?

[Swiper]

What does that do? I thought it was a parry but it doesn't seem to be.

[SemaSan]

You have to keep tapping it to activate a special blast from it. It is not a parry move or anything special, just a small blast that do minimum damage to foe.

[Professor Hakase]

can alos lengthen the combo in slashing so you wont stop also helps restore stam

[DrGhostJelly]

Doing it once will put you in a stance, allowing you to reset combos. From that stance, doing it again will shoot either a bomb or bullet based on the your blade called an impulse blast? (I forget the specific term).

All "techs" can be found in the database under system terms (I think? it's somewhere in there)

[Rhael]

Originally posted by CorruptMadNinja:

doing it again will shoot either a bomb or bullet based on the your blade called an impulse blast? (I forget the specific term).

Impulse Edge.

The main use of the stance is to get it ready to use Impulse Edge, but since it is a "cancel" movement, you can use it to cancel the combo instead of waiting for the character to recover from the last hit and start your combo over.