Discharge a rail of ionized death or throw the Ferrox like a spear and create a localized field of attraction no enemy can escape from.
The Ferrox is a Corpus Spear Gun introduced and wielded by Index broker Derim Zahn. Its Alternate Fire tosses the Ferrox as far as 50 meters, creating an electric field where it lands and pulling enemies towards it. It is available for research in the Energy Lab of the Clan Dojo.
The Ferrox' alternate fire throws the weapon itself at the target, and upon landing on a surface arcs of electricity will emit from the Ferrox and chain to any nearby enemies, dealing 150Electricity damage every 5 seconds with a moderate chance to proc. Enemies under this effect will also be passively dragged towards the Ferrox.
The damage's tick rate is affected by fire rate mods.
Multishot neither increases the tick's damage nor rate.
Currently, reaching 100% status on the alt-fire does not guarantee procs; it's more in line with the normal attack's status chance.
The Ferrox automatically teleports back to the player's hand 20 seconds after being thrown, or until the player manually picks the Ferrox back up again.
Throwing the weapon does not consume ammo.
The Ferrox' alt-fire has a maximum throwing range of ~50m (though it may be displayed as slightly less due to the forward movement of the player when throwing the weapon).
The arc Ferrox will take when thrown is affected by both the angle of the throw as well as how much the throw was charged.
Enemies killed by the primary or damage from the secondary attack will vaporize, similar to channeled kills by melee weapons. This makes it very viable for stealth, as long as the weapon is silenced or Hushed Invisibility is used.
It is not recommended to install Heavy Caliber as the accuracy will greatly deviate leading to inaccurate shots even with the secondary fire.
This weapon's decent critical chance and damage multiplier make critical builds using Point Strike and Vital Sense good options.
When applying additional elements to the Ferrox, its alt-fire will proc them periodically; as with other weapons with an elemental base, Electricity will be applied last if there are two or more, other elements modded for, unless an Electricity mod is included in the order.
Tactical Reload has an effect while the spear is out after alt-fire is used, so it's possible to do seamless reloads this way.
The Ferrox' alt-fire is very useful as a crowd control tool in Survival missions, as its tethering arcs may stun enemies with Electricity procs and also pull them together in a close lump.
It is further amplified on corridors where enemies pass through frequently.