Shards

I use 2 tau yellow parkour speed, 3 tau blue shield capacity for my other build

Casting speed shards instead of parkour shards are good as well.

Arcanes

Arcane Augmented to increase damage boost from [Airburst Rounds]

Arcane Energize for energy economy

Flexible Mods

Main idea is just to have max efficiency so [Loyal Merulina] spams sea snare and high damage to boost [Airburst Rounds]

Survivability

High shield with 90% damage reduction from merulina combined with 90% damage reduction from [Adaptation].

Shields already have a base 50% damage reduction compared to health. So this gives you a 99.5% damage reduction compared to health tanking.

If you want to shield gate replace [Adaptation] with [Umbral Intensify], [Growing Power] with [Brief Respite], [Redirection] with [Catalyzing Shields], and augmented with aegis.

Weapons and Companions

I use a fulmin with primary bulwark for my primary. Just replace bulwark with crux and magnetic with [Serration].

I use a blast, viral, electric, enervate [Kompressa] for my secondary.
Any secondary works, use dual tox if you want to [Shred] everything. I use [Kompressa] since its her gun.

I use [Furax Wraith] with its mod for increased secondary fire rate.

I use panzer as a companion as [Hunter Recovery] provides consistent healing with quills, tenacious and [Reinforced Bond] as well.

Helminth

Build is focused around [Airburst Rounds] buffing your secondary

Use Case

General use build for fun, brought it to ETA once and it worked well.

Extra

Madurai for focus school

Make sure to merulina is up at all times or you will die quickly.