Progenitor for Magnetic
Secondary Enervate & Viral/Corrosive + Heat
Viral or Corrosive and Heat is awesome for high status weapons, but not without a bane mod. Due to Heat Inherit, it's possible to hurt ourselves if we run our heat damage on something that can't assist the other parts of the kit that may utilize heat damage. The best option for Viral/Corrosive + Heat is using enervate, as we can replace Primed Pistol Gambit for a Bane mod, then slot in Heated Charge over Convulsion. Consider running an external primer on the companions for stacking Galvanized Shot or running Octavia or Chroma for base damage.
Secondary Shiver
The Dual Coda Torxica is among the VERY few weapons in the game that probably seem to enjoy this arcane, outside Multi CO weapons. The passive allows it to guarantee cold procs on enemies when nearby enemies are killed. Thing is, for this weapon... the damage increase is additive. It's additive up to 480%, remind you of anything? Cascadia Flare is still just better than Shiver... unfortunately. Frost would be great in that he can cast Avalanche and freeze the room, but remember that overguarded enemies and acolytes only care for 4 stacks of cold, max. That's a big damage loss.
Secondary Outburst
Secondary Outburst is one of the better options between the arcanes. Having a shit ton of crit chance and crit damage per combo multiplier on the melee can be well worth it. It saves on having to stack so many variables on the weapon itself aside from Galvanized. Outburst and Ceramic Dagger go hand in hand, and stacking as much initial combo with Ceramic Dagger, along with a strong primary weapon for the combo increase, can yield fantastic results for this weapon. There are a lot of small hoops to go through, but that's only at the beginning of the mission and will persist, so long as you don't die.