Dagger Rush

Animation Description
Dagger Rush pulls both daggers back slightly on your right side then performs a thrusting lunge pushing back the target slightly.

When Dagger Rush is used while under the efffects of Nimble Dash's Evasion Boost it will instead perform the animation slightly faster and pass through the target during the lunge, ending 3m past them.

Skill Linking
Dagger Rush when used while under the effects of the Evasion Boost buff from Nimble Dash will instead perform a charging slash that will travel through the target, in a similar fashion to Flash Cut after a Nimble Dash.

An additional effect will be applied to an enemy when used with an active Poisoned buff. Stacking up to 3 times
 * Deadly Poison: Deals 100 damage to health ever 1 second for 3 seconds.
 * Crippling Poison: Decreases Move Speed by 20% for 8 seconds.
 * Weakening Poison: Reduces Physical Attack by 10% for 6 seconds.

Stratagy and Tactics
This skill works well with Flash Cut after a Nimble Dash, the combination of abilities will slash through the target 2 times usually making at least one of the skills hit from behind granting the Chilling Shadow Passive.

With some cooldown reduction you can after using Nimble Dash cast Flash Cut then Dagger Rush and then another Flash Cut, performing 3 charging slashes.