[Hunter Adrenaline] and [Streamline] provide energy generation and conservation. [Streamline] can be swapped for (Primed) [Flow], your call.

[Blind Rage] and [Umbral Intensify] for ability strength. [Transient Fortitude] can cover for [Blind Rage], though you'll probably want to work (Primed) [Continuity] in somewhere else to compensate for the loss in duration. It can be slotted over Streamline in this case.

Stretch for range.

Umbral Vitality and Adaptation for durability.

Final slot is a flex slot, go nuts.

• Rolling Guard is an amazing survival mod, especially to deal with status effects.
• Umbral Fiber is simple and easy, though you'll need an extra forma somewhere.
• Insatiable and Teeming Virulence are useful in their own rights.
• Natural Talent can speed up your casts.
• Strain Consume could be fun.
• Augur Reach boosts range even more, for more Larva shenanigans.
• (Primed) [Continuity] boosts the duration of Parasitic Link, Larva, and Ravenous, though their durations are already solid.

[Adaptation] can be swapped with [Rolling Guard], especially if you slot [Natural Talent] in the flex slot.

Aura is up to you, [Steel Charge] is nice for capacity, [Corrosive Projection] is never a bad choice, [Growing Power] matches the default polarity; use what you like.

Exilus is also up to you; [Primed Sure Footed] prevents knockdowns, while [Power Drift] is a nice general boost. [Enemy Sense] or [Vigilante Pursuit] are also good choices, and [Preparation] means you don't have to worry about energy at the beginning of a mission.

Recommended arcanes include Strike, Avenger, [Guardian], and Grace.