Why?

• Interesting grouping mechanic
• Speargun's holster reload quirk
• Looks cool

Where?

• Corrupted fall to Slash and Toxin
• Corpus fall to Toxin and Magnetic
• Grineer and Infested are most resistant, falling only to Slash
• Acolytes fall to Slash

What?

• Primary Deadhead for more damage, despite reliance on DoT kills. Against Corrupted, some Corpus & Grineer units only need raw damage to be killed.
• [Galvanized Scope] for 142.8% CC. Gap in critical chance versus Critical Delay before second activation condition (74.8 vs 102) isn't terribly large.
• Both Primed Shred and Vile Acceleration to stack fire rate for BOTH throw animation speed and tick rate of alternate fire damage field.
• Fire rate for primary fire should be 6.25 rounds per second, emptying the clip in 3.2 seconds.
• [Malignant Force] instead of [Infected Clip] for better chance of Corrosive procs from alternate fire, plus easier stacking of other statuses from primary fire.

Alternate fire throws the [Tenet Ferrox], creating a field which pulls enemies within 10m towards the [Tenet Ferrox] and deals Corrosive damage every 0.816 seconds (1.225 ticks per second).
Higher tick rate means faster procs of Corrosive. 80% chance to proc Corrosive per tick.

Ideally paired with a Nourish user or Viral source. Might be worthwhile to use Primary Blight, and make up for lost base damage with [Galvanized Aptitude]. Perhaps [Primed Shred] can go.