Hello there,
Here is the new version of [Ash]'s StatStick, without Riven, which you don't need at all. I'm giving you full guide of how to build and evolve this dagger.
Evolution I - Incarnon Form: activate by executing a Heavy Attack with a Melee Combo of 5x or higher. Lasts for 90 seconds.
Evolution II - Bladed Harmony: +25% Attack Speed.
Evolution III - Blade Twister: +60% Finisher Damage.
Evolution IV - Swooping Lunge: On Airborne Melee Kill: +50% Melee Damage for 10s. Stacks up to 3x.
Evolution V - Armed Inspiration: Collecting ammo grants 5 Melee Combo counter.
You can use this melee as an actual weapon, you can, and you should build combo. Use Arcane Dexterity on your Primary and Secondary to max out your Combo Duration. Also use Naramon Focus School for its Power Spike passive.
To fully enjoy "new" [Ash], using his "[Blade Storm]" ability, use this build with this one: Splinter Cell (post Duviri Paradox).
Go... make me proud!
THeMooN85