Theorylytics
Prisma Obex

Prisma Obex

Crit Melee / Combo Scaler

Dazzle, distract and destroy with these sparring weapons of impossibly hard prisma crystal.

Role
Crit Melee / Combo Scaler
Polarities
None
Exilus
Mastery
10
Disposition
1.25
Introduced
Hotfix 20.4.2 (2017-05-05)

Stats

Ordnance Telemetry

MeleeMelee

Damage

150.0

Crit

25.0%

Crit Mult

2.0x

Status

30.0%

Damage Composition

150.0 total

Impact
105.0
Puncture
22.5
Slash
22.5
Attack Speed
1.33
Range
1.25
Combo
5.0s
Follow Through
0.9
Disposition1.25
None
  • Mastery10
  • IntroducedHotfix 20.4.2 (2017-05-05)

Weapon dossier

Verified 2026-07-23

Playstyle

Dazzle, distract and destroy with these sparring weapons of impossibly hard prisma crystal. Built as a crit melee / combo scaler option for squad clear and mission pressure.

Signature

Prisma Obex is not a signature weapon — any frame can use it without a signature passive.

When to Pick

  • You want a Melee that fits a crit melee / combo scaler play pattern.
  • Your loadout needs what Prisma Obex does well — check Mission Usefulness below before investing Forma.
  • You’re ready to Catalyze / Forma it if you plan to main it on Steel Path.

Attack Modes

  • Normal Attack

    Impact 105 · Slash 22.5 · Puncture 22.5

    Crit 25% / 2× · Status 30% · Fire Rate 1.33

  • Slam Attack

    Electricity 300

    AoE · Crit 25% / 2× · Status 10% · Fire Rate 1.33 · Falloff 0–7m (−50%)

  • Heavy Slam Attack

    Electricity 450

    AoE · Crit 25% / 2× · Status 10% · Fire Rate 1.33 · Falloff 0–8m (−30%)

Attack Notes

  • Normal Attack: Impact 105.0, Slash 22.5, Puncture 22.5.
  • Slam Attack (AoE): Electricity 300.0.
  • Heavy Slam Attack (AoE): Electricity 450.0.

Upgrades

Permanent investments on this weapon copy — separate from the Prime variant.

  • Orokin CatalystCapacity

    Doubles mod capacity so endgame builds fit.

    Usually the first permanent upgrade on a weapon you plan to main.

  • FormaPolarity

    Adds or changes polarities so matching mods cost half capacity.

    expect multiple Forma for a hungry config.

  • Stance / Exilus (as applicable)Slot

    Unlocks utility options (Exilus on guns; melee focuses on stance polarity + utility mods).

    Install when you need ammo, handling, or QoL without sacrificing damage slots.

  • Melee Arcane AdapterArcane

    Lets you install a weapon arcane for a strong passive bonus.

    Worth it once the base mod config is already solid.

  • Riven ModRiven

    Unique rolled mod. Disposition 1.25.

    Chase clean desirable stats; skip awkward negatives on low-disposition weapons.

Mod Scaling

Multishot

Melee doesn’t use multishot — invest in range, combo, and attack speed instead.

Critical

Blood Rush + crit damage is the classic crit melee route when base crit is workable.

Elemental

Viral/Heat or Corrosive/Heat dual-stats after your damage and conditioner mods.

Fire Rate

Attack speed (Berserker Fury / Primed Fury) keeps combo stacks rising.

Priority

Damage/CO → Blood Rush / Weeping Wounds → Crit Damage → Elemental → Range/Speed QoL.

Mission Usefulness

Mission / ContextRatingWhy
Steel Path Survival / Defense / DisruptionStrongTest whether Prisma Obex still clears or enables clear when enemies are dense and overlevelled.
Exterminate / Capture Speed RunsStrongUse Prisma Obex when its fire pattern matches fast tile clears — skip if it feels awkward on empty lanes.
Mobile Defense / ExcavationStrongHold objectives by deleting approach packs with Prisma Obex, then reposition.
Open World / Long SightlinesSituationalLong sightlines favor hitscan/sniper/bow patterns over short falloff or melee.
Solo Boss / Single-TargetSituationalFine if Prisma Obex has strong single-target multipliers; otherwise bring a dedicated boss weapon.

Acquisition

Check the How to Get table for blueprint / part drop sources.

Alternatives

Other options if Prisma Obex isn’t the right fit.

  • Obex

    Related variant in the same weapon line as Prisma Obex — Obex has lower damage (20%) and lower status (67%). Compare polarities before Forma.

  • Ack & Brunt

    Another Melee if you want less status than Prisma Obex (Ack & Brunt: 10.0%).

  • Amanata

    Another Melee option if Prisma Obex’s handling or acquisition doesn’t fit your farm.