SLOT 1 · RANK 10
Polarized slot
← Companion builds

11
Hellfire+90% HeatRANK 5/5Hellfire+90% HeatEffects shown at max rank · 11 base drain
7
Thermite Rounds+60% Heat, +60% Status Chance at max rankRANK 3/3Thermite Rounds+60% Heat, +60% Status Chance at max rankEffects shown at max rank · 7 base drain
9
Wildfire+15% Heat, +5% Magazine per rankRANK 3/3Wildfire+15% Heat, +5% Magazine per rankEffects shown at max rank · 9 base drain
7
Rime Rounds+60% Cold, +60% Status ChanceRANK 3/3Rime Rounds+60% Cold, +60% Status ChanceEffects shown at max rank · 7 base drain
7
Malignant Force+60% Toxin, +60% Status ChanceRANK 3/3Malignant Force+60% Toxin, +60% Status ChanceEffects shown at max rank · 7 base drain
7
Rifle Aptitude+90% Status ChanceRANK 5/5Rifle Aptitude+90% Status ChanceEffects shown at max rank · 7 base drain
9
Split Chamber+90% MultishotRANK 5/5Split Chamber+90% MultishotEffects shown at max rank · 9 base drain
Curated build
3 Forma · guide
Helstrum
The Heat Missiles
A heat-inherit primer that seeds a large first heat stack
BUILD PERFORMANCE
Imported guide figures
Weapon figures land near 5% crit chance and 1.5x crit damage; the build is tuned for the heat stack.
CONFIGURATION
8 equipped modsSLOT 2 · RANK 5
Hellfire
Unpolarized slotSLOT 3 · RANK 3
Thermite Rounds
Unpolarized slotSLOT 4 · RANK 3
Wildfire
Unpolarized slotSLOT 5 · RANK 3
Polarized slot
Rime Rounds
SLOT 6 · RANK 3
Polarized slot
Malignant Force
SLOT 7 · RANK 5
Rifle Aptitude
Unpolarized slotSLOT 8 · RANK 5
Polarized slot
Split Chamber
CEPHALON FIELD GUIDE
How to play this build.
Tenno. Helstrum fires a volley of micro-missiles that hit many enemies at once. Loaded with every heat and faction multiplier, that first heat stack is huge, and heat inherit copies it to every later proc from your main weapon.
The mods
Hellfire plus Thermite Rounds plus Wildfire load the heat; Primed Bane of Orokin adds the faction multiplier that the inherited stack copies; Split Chamber is multishot so the missiles blanket the pack.
Swap the viral mods for Primed Firestorm and Vile Acceleration if you want a wider, faster volley.
Where it struggles
The mechanic is faction-specific and fiddly.
Near-zero direct damage.
Variants
The Orb Cube (#383) is a Dethcube built around a Helstrum.
Who runs this
Players running a heat-inherit main weapon.