[Okina Prime] build meant to be used with Vicious Trickster Loki Prime to be used as a serviceable weapon and force amplifier for his main damage source; [Damage Decoy]. (And before anyone says it, yes, I'm aware the [Okina Prime] do primarily Slash Damage. I don't get it either.)

[Damage Decoy] allows you to mark a foe to become your decoy, temporarily increasing their durability while drawing friendly fire to them; enemies who hit your decoy target take the damage they inflicted with a multiplier and suffer three random status effects.

The damage-dealing Status effects (Heat, Toxin, Blast, Electricity, Gas, Slash) use the reflected damage to calculate their own damage output; and while that's serviceable on its own for a [Loki] with sufficiently high Strength, [Jade] Shadows has given us a force amplifier that allows us to keep an ability slot open for Helminth where Sickening Pulse might have been used otherwise; the new Melee Arcane, Melee Afflictions.

When you Knock Down or Ragdoll an enemy who is currently afflicted with a status effect, you add 6 stacks of any Status Effect they're suffering from. This is especially powerful for Slash, Heat, and Toxin effects, as Sickening Pulse would simply add a new, full-duration proc instead of 10 stacks.

And luckily for the Okina Prime, the Spinning Needle Stance has three combos that inflict Knock Down/Ragdoll;

True Kiss (Neutral) inflicts a Knock Down on the final hit.
Fey Intervention (Guarding) Ragdolls on the final hit.
Savage Tiger (Heavy Attack), shared across all Dual Daggers, inflicts Knock Down on both hits.

Using neutral or guarding combos can easily trigger Melee Afflictions, and it will also be easily triggered with Tennokai, allowing [Loki] to take his already strong damage tool and amplify it even further.

Why [Amar's Contempt]? [Loki] has no shortage of mobility thanks to Switch Teleport (provided he has targets in the right places to move to), but given that this build incentivizes using Tennokai attacks to magnify [Damage Decoy]'s status effects, being able to leverage Amar's set bonus to teleport (even if only short distances) is a worthwhile boon.

Though, I also understand that it competes for its slot with Condition Overload, so if you don't want/need the added mobility, replace it with [Weeping Wounds].