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During parades and victory marches, the Laetum fired pigmented airburst rounds that rained onto festive crowds. The Orokin sent Laetum with the Zariman so they could properly celebrate a successful maiden voyage to Tau. There would be no such celebration, but the Void imbued the Laetum with a much more explosive capacity.

Laetum is an Incarnon ceremonial pistol evolved by the Void to shoot deadly explosive airburst rounds. Starting out as a semi-automatic pistol, achieving enough headshots will allow the player to temporarily transform it into a fully automatic rifle that deals DmgRadiationSmall64 Radiation damage in a small area of effect.

Characteristics[]

  • This weapon deals primarily DmgSlashSmall64 Slash damage in its normal form and DmgRadiationSmall64 Radiation in its Incarnon Form.
  • Once Incarnon Form is unlocked, landing headshots fill the Incarnon Transmutation gauge that transforms the Laetum into an automatic weapon via the Alternate Fire key.
    • Additional shots from Multishot counts as separate headshots.
    • The gauge reaches full charge after 12 headshots, and does not require a full gauge to activate. It will also emit a small, ghost-like wail when the gauge is completely full.
    • Shots deal pure DmgImpactSmall64 Impact damage on direct hits, and DmgRadiationSmall64 Radiation damage in a 2 meter radius.
      • Initial hit and explosion apply status separately.
      • Explosion does not need direct line of sight to deal damage and will penetrate walls.
      • Can benefit from Mod TT 20px Fulmination (Mod TT 20px Primed).
    • Instead of drawing from the Laetum's ammo reserves, Incarnon Form gives the Laetum a unique "magazine" from 18 rounds per charge to a maximum of 216, indicated by the regular ammo HUD and a bar underneath the reticle.
      • If the Alternate Fire key is pressed whether or not the Incarnon magazine is fully expended, the Laetum is transformed back into its default state, however this will also fully expend any remaining Incarnon gauge.
  • As with all Incarnon weapons the Laetum has 5 evolution tiers with different perks that allow players to customize their Laetum's stats with Cavalero's assistance.

Advantages over other Secondary weapons (excluding modular weapons):

  • Normal Attack (wiki attack index 1)
    • Above average crit chance (22.00%)
    • High total damage (160)
    • Above average ammo max (210)
    • Above average crit multiplier (2.20x)
  • Incarnon Form (wiki attack index 2)
    • Above average crit chance (22.00%)
    • Above average ammo max (210)
    • High fire rate (6.67 attacks/sec)
  • Auto Radial Attack (wiki attack index 3)
    • Above average crit chance (22.00%)
    • Above average fire rate (6.67 attacks/sec)

Disadvantages over other Secondary weapons (excluding modular weapons):

  • Incarnon Form:
    • Explosion inflicts self-stagger.
    • Explosion has a headshot multiplier of 1x and cannot trigger headshot conditions.
    • Explosion have linear Damage Falloff from 100% to 80% from central impact.
    • Cannot Punch-Through.
  • Normal Attack (wiki attack index 1)
    • Low reload speed (2.00 s)
    • Below average magazine (12)
    • Low fire rate (2.50 attacks/sec)
    • Very low disposition (●○○○○ (0.50x))
  • Incarnon Form (wiki attack index 2)
    • Low reload speed (2.00 s)
    • Very low disposition (●○○○○ (0.50x))
  • Auto Radial Attack (wiki attack index 3)
    • Below average active falloff slope (10.0m/%)
    • Very low maximum falloff distance (2.0 m)
    • Low reload speed (2.00 s)
    • Below average status chance (22.00%)
    • Very low disposition (●○○○○ (0.50x))

See WARFRAME Wiki:Stat Comparison/Percentiles for more details.


Acquisition[]

Laetum's main blueprint is purchased from Cavalero of The Holdfasts at Rank 0 - Neutral for ReputationLarge 3,000 Standing. The blueprint can be traded.


Manufacturing Requirements
📝 Edit blueprint requirements
Credits
30,000
VoidplumePinion Voidplume Pinion
1
VoidplumeQuill Voidplume Quill
5
VoidgelOrb Voidgel Orb
20
Ferrite Ferrite
4,000
Time: 1 Day(s)
Rush: PlatinumLarge 25
MarketIcon Market Price: PlatinumLarge N/A Blueprint2 Blueprints Price:ReputationLarge3,000

Notes[]

Evolutions[]

Overview[]

Evolution Challenge Perk Description
Evolution I Kill 100 enemies with the Laetum
EvolutionIncarnonFormGun

Incarnon Form

Headshots charge Incarnon Transmutation; Alt Fire transmutes. Switching back will expend any remaining charge.
Evolution II Kill 8 Eximus with the Laetum's Incarnon Transmutation
EvolutionReducedRecoil

Marksman's Hand

-40% Recoil.
EvolutionRapidWrath

Rapid Wrath

+20% Fire Rate.
EvolutionRaptor'sChase

Raptor's Chase

+50% Movement Speed while Aiming.
Evolution III Land 8 headshots on Void Angels with Primary fire without reloading
EvolutionLethalRearmament

Lethal Rearmament

On Headshot: +30% Reload Speed for 12 seconds. Stacks up to 3 times.
EvolutionHolsterReload

Awakened Readiness

30% Magazine Reloaded per second while Holstered.
EvolutionFeatherOfJustice

Feather Of Justice

Gain 60% Ammo Efficiency while Aim Gliding or Sliding.
Evolution IV Close 12 Ruptures in Void Flood.
EvolutionCaputMortuum

Caput Mortuum

+50% Headshot damage.
EvolutionFastTransmutation

Incarnon Efficiency

Headshots build +50% Incarnon Transmutation mode charge.
EvolutionTrade-Off

Elemental Excess

+20% Status Chance. -10% Critical Chance.
Evolution V Complete a Solo mission with an Incarnon Weapon equipped in every slot
EvolutionNon-Critical

Devouring Attrition

50% chance to deal 2000% damage on non-critical hits.
EvolutionReaper'sPlenty

Reaper's Plenty

On Headshot: +40% Ammo Efficiency for 6 seconds.
EvolutionOverwhelmingAttrition

Overwhelming Attrition

On Hit that is neither Critical nor applies a Status Effect: +400% damage for 10 seconds. Stacks up to 3 times.

Details[]

  • When newly acquired from the Foundry, players must acquire 100 kills with the Laetum in order to gain access to its Incarnon transformation. The following Evolution tiers, their requirements for unlocking them, and their related perks, are shown below;

Evolution I[]

  • Unlock Challenge: Kill 100 enemies with the Laetum
  • Headshots charge Incarnon Transmutation; Alt Fire transmutes. Switching back will expend any remaining charge.
    • Incarnon Form changes the weapon from a semi-auto to full-auto with increased fire rate, reduced recoil, direct shots have increased DmgImpactSmall64 Impact damage but no longer deal DmgSlashSmall64 Slash damage, and its shots explode in a 2 meter radius inflicting DmgRadiationSmall64 Radiation damage.
  • Mode switching is not instantaneous and has an animation equal to the weapon's reload speed.
  • Incarnon Form uses primary weapon animations. Because of this the Laetum cannot be dual wielded along with any Glaive.
    • Any skins equipped on the Laetum will only affect the original appearance; Incarnon Transformation will still use the dedicated model.
  • Incarnon Form is activated by filling the Incarnon Transmutation gauge that appears under the reticule by achieving headshots and then pressing the Alternate Fire button. 12 headshots will completely fill the gauge. A full gauge is not required to activate Incarnon Form.
    • Charges generate only on headshots (i.e. body parts that produce a red hit indicator). Shooting weakspots generated by either Sonar130xWhite Sonar or Mod TT 20px Detect Vulnerability in places other than heads will have no effect.
    • Headshots on corpses do not build charges.
    • Individual Multishot bullets can build charges.
  • Instead of drawing ammunition from its reserves, the Laetum's Incarnon Form uses a separate "magazine" with each charge producing 12 rounds to a maximum of 220. Once all ammunition is expended, the Laetum reverts to its normal form.
  • Mod TT 20px Synth Charge has no effect on Incarnon Form, even if transformed when the normal form has one round remaining.

Evolution II[]

  • Unlock Challenge: Kill 8 Eximus with the Laetum's Incarnon Transmutation
  • Perk 1: Marksman's Hand:
    • -40% Recoil.
      • Affects both modes.
  • Perk 2: Rapid Wrath:
  • Perk 3: Raptor's Chase:

Evolution III[]

  • Unlock Challenge: Land 8 headshots on Void Angels with Primary fire without reloading
    • Hits landed from multishot count towards this challenge.
  • Perk 1: Lethal Rearmament:
    • On Headshot: +30% Reload Speed for 12 seconds. Stacks up to 3 times.
      • Affects untransformed Laetum and Incarnon Form mode switching.
      • Stacks decay incrementally; when the buff times out, one stack is lost and the buff duration resets.
  • Perk 2: Awakened Readiness:
  • Perk 3: Feather of Justice:

Evolution IV[]

  • Unlock Challenge: Close 12 Ruptures in Void Flood.
    • Note this does not have to be all done in a single run; progress towards this is maintained between runs.
  • Perk 1: Caput Mortuum:
    • +50% Headshot damage.
      • Affects both modes.
  • Perk 2: Incarnon Efficiency:
    • Headshots build +50% Incarnon Transmutation mode charge.
      • Only affects untransformed Laetum.
      • Reduces the number of headshots required to fully charge Transmutation to 8.
    • Perk 3: Elemental Excess: +20% Status Chance. -10% Critical Chance.
      • Affects both modes.
      • Effects are added last after mods as a flat number.

Evolution V[]

  • Unlock Challenge: Complete a Solo mission with an Incarnon Weapon equipped in every slot
  • Perk 1: Devouring Attrition:
    • 50% chance to deal 2000% damage on non-critical hits.
      • Affects both modes.
      • Multiplicative to base damage sources such as Mod TT 20px Hornet Strike.
      • Acolytes ignore this perk.
  • Perk 2: Reaper's Plenty:
    • On Headshot: +40% Ammo Efficiency for 6 seconds.
    • Only affects untransformed Laetum.
  • Perk 3: Overwhelming Attrition:
    • On Hit that is neither Critical nor applies a Status Effect: +400% damage for 10 seconds. Stacks up to 3 times.
      • Affects both modes.
      • Damage bonus is additive to base damage bonuses such as Mod TT 20px Hornet Strike.
      • When the buff times out, one stack is lost and the buff duration resets.

Tips[]

Trivia[]

  • Laetum is an inflection of the word laetus, which means happy in Latin and reflects the Laetum's original purpose.

Media[]

Shot
Alt-fire shot
Mech
Alt-fire mech
Reloading

Patch History[]

Hotfix 35.5.8 (2024-04-24)

  • Fixed the damage increase from Xata’s Whisper unintentionally applying twice on the Laetum’s Devouring Attrition perk.

Hotfix 34.0.5 (2023-10-26)

  • Fixed the “Kill X Eximus with the weapon’s Incarnon Form” challenge for the Laetum resetting even after completion.

Hotfix 33.6.7 (2023-08-31)

  • Fixed the Laetum Incarnon’s bullets facing the wrong direction.

Hotfix 33.6.4 (2023-08-15)

  • Fixed the Evolution VI Incarnon Challenge (Complete a mission with an Incarnon Weapon in every slot) not completing for the Laetum when using weapons with Incarnon Geneses installed.

Hotfix 33.0.8 (2023-05-11)

  • Fixed the Laetum being equipped in the wrong hand when riding Kaithe.

Update 33.0 (2023-04-26)

  • Changed Incarnon Weapons’ “DAMAGE” stat to “Incarnon Form” when viewing the Incarnon Form damage values in the Arsenal.
  • Fixed Incarnon weapons reverting to their default form not being visible to other players in the squad until it is shot again.
  • Fixed pickups such as Data Masses and Disruption Keys floating in the air when reloading the Laetum.

Update 32.3 (2023-02-15)

  • Fixed custom reticles (Incarnon weapons for example) overlapping with default reticles in the UI when swapping between weapons.
  • Fixed the Incarnon mode reticle appearing when it has not yet been unlocked for that Incarnon Weapon.

Hotfix 32.2.5 (2022-12-14)

  • Fixed Incarnon Weapons losing their crosshair when flying around in Archwing in open landscape areas.

Hotfix 32.2.4 (2022-12-07)

  • Fixes towards script error with Incarnon Weapons’ HUD.

Hotfix 32.2.1 (2022-11-30)

  • (Hot-dropped earlier today) Fixed certain players getting a “failed to update account” error while trying to complete Incarnon Weapon challenges in mission.
  • Fixed script error when hovering over Incarnon Weapon upgrades in the Arsenal UI.

Update 32.1 (2022-11-02)

  • Fixed the Laetum missing sound FX for reloading and Incarnon Mode while a skin is equipped.

Hotfix 32.0.3 (2022-09-14)

  • Fixed the Laetum gaining charges in their Incarnon form from headshots while Xata’s Whisper is active.

Update 32.0 (2022-09-07)

Headshot Damage Changes

During playtesting, the ammo changes alone weren’t enough to significantly change things for AoE weapons. So instead of tightening these values to be overly restrictive, we chose to address other factors that make these weapons so strong, such as headshot damage.

Our approach here is two-fold, to reduce the impact of headshots for AOE weapons, but to also make precision headshots pack a larger punch overall.

  • Radial damage no longer gains extra headshot damage or triggers headshot conditions.
    • This is primarily targeted at the Ignis Wraith - as a “flamethrower” weapon, it’s hard to imagine a blanket of elements being precise enough to target weak points specifically. Explosive projectiles themselves can still land headshots, so there is still a reason to aim with most weapons for maximum damage.
FIXES:
  • Fixed the default Arching Reticle overlapping the custom Incarnon Weapon Reticle when in Archwing.
  • Fixed Incarnon Weapon reticles being visible in Captura Scenes.

Hotfix 31.7.2 (2022-08-17)

  • You can now search for Incarnon weapons in your Inventory by typing “Incarnon”.

Hotfix 31.6.4 (2022-07-14)

  • Fixed the stat change for Incarnon weapons that have crit/status chance Evolution upgrades not appearing in the Arsenal.

Hotfix 31.6.1 (2022-06-09)

  • Reduced clip flare for Laetum to help show underlying animation.

Update 31.6 (2022-06-09)

  • Updated the Incarnon Form charge gauge in the Incarnon weapon reticle to improve readability on when there is charge/when it is at full charge.
  • Updated Incarnon Weapon Evolution screen to include stat comparisons when selecting Evolution perks in Cavalero’s evolve screen. From the original known bugs list.
  • Changed Laetum’s ‘Overwhelming Attrition’ Evolution duration from 20 to 10 seconds.
    • Overwhelming Attrition was simply too powerful to justify using the other two Tier 5 Evolutions for the Laetum. This change was made to encourage build diversity for the Laetum.
  • Made some slight adjustments to framing of Incarnon weapons in Cavalero’s Evolution screen.
  • Fixed the Laetum’s "Overwhelming Attrition" Evolution perk triggering much less frequently for Clients than for Hosts.
    • If any projectile in the multishot group was a critical hit or status effect, the entire thing became invalid and would not get the buff for Clients.
  • Fixed Clients gaining Incarnon Form charges added and then partially resetting and counting back up in high latency situations.
  • Fixed the Laetum’s Evolution V ability “Devouring Attrition” not providing its 50% chance of receiving a 2000% damage buff on non-critical hits for Clients.
  • Fixed Incarnon weapons using Skins in Incarnon form. From the original known bugs list.
  • Fixed Laetum Reaper’s Plenty Evolution applying to all equipped weapons.
  • Fixed cases of Evolution perks not working for Clients.
  • Fixed Incarnon Evolutions UI persisting in the Loadouts screen.
  • Changed the reticle of several weapons with a charge mechanic to no longer use energy colors for their charge indicators.
    • While it’s desirable to have the reticle of these weapons take on the energy color, it sacrifices too much clarity for the weapon charge indicator.
      • This applies to:
      • Laetum transmutation gauge

Hotfix 31.5.10 (2022-05-17)

  • Fixed the Laetum’s Evolution V perk ‘Reaper's Plenty’ applying its ammo efficiency to all equipped weapons, instead of just the Laetum as intended.

Hotfix 31.5.9 (2022-05-12)

  • Fixed the Incarnon Weapon Evolution UI elements persisting in the Loadout screen.
  • Fixed a crazy muzzle flash FX on the Laetum.

Hotfix 31.5.8 (2022-05-11)

  • Fixed Cascadia Empowered triggering Overwhelming Attrition.

Hotfix 31.5.7 (2022-05-06)

  • Fixed all Incarnon Evolutions that increase or reduce Critical/Status Chance not applying correctly.
    • Previously, the base stats were not additive, which meant that they weren’t being applied in full. For example, the Phenmor’s Survivor’s Edge Evolution IV +10% Critical Chance +10 Status Chance was only applying a fraction of that percentage boost. They will now apply properly as described in its descriptions!
  • Fixed the Laetum’s ‘Overwhelming Attrition’ Evolution perk activating from status DOTs inflicted by the weapon.
  • This was in contradiction to its description and original design: “On Hit that is neither Critical nor applies a Status Effect: +400% damage for 20 seconds.”

Hotfix 31.5.6 (2022-05-04)

  • Fixed script error related to special Incarnon weapon reticle.

Hotfix 31.5.5 (2022-05-03)

  • Fixed Synth Charge’s effects applying to the Laetum’s Incarnon Transmutation by 200% for the full duration if you transmute it with only one bullet left in the magazine.
  • Fixed being unable to trigger Transmutation on Incarnon weapons with alt-fire/heavy attack after Host migration.

Hotfix 31.5.4 (2022-05-02)

  • Added custom icon for the ‘Incarnon Challenges’ category in the in-mission Challenge Progress window.

Hotfix 31.5.3 (2022-04-29)

  • Fixed script error related to checking challenge progress for Incarnon Weapons while in mission.

Hotfix 31.5.2 (2022-04-28)

  • Improved the reload animations of the Laetum.
    • Also fixes the Laetum clipping through Warfarme when not aiming down sight.

Update 31.5 (2022-04-27)

  • Introduced.

See Also[]

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