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Slash through enemies with two leaves of the exceedingly rare Arum Spinosa plant. Heavy Attack to whip a flurry of toxic spines at ranged attackers.

Arum Spinosa is an Infestation w.svg Infested Warfan that shoots DmgToxinSmall64.png Toxin projectiles on Heavy Attack.

Characteristics[]

  • This weapon primarily deals DmgSlashSmall64.png Slash damage.
  • Heavy Attacks throw toxic spines, with each spine doing 70 base damage.
    • The first heavy attack throws 18 spines, each with a 2.5x damage multiplier; the second heavy attack in sequence throws 9 spines, each with a 5x damage multiplier,
    • Damage of the spines are affected by mods.
    • Spines are considered a heavy attack. Their damage will scale from the combo counter and mods such as Mod TT 20px.png Killing Blow.
    • Spines have innate Punch Through.
    • Spine damage does not diminish with distance.
    • Has a travel time.
    • Has a limited range of ~35 meters.
    • Cannot use Thrown Melee mods Mod TT 20px.png Combo Fury, Mod TT 20px.png Power Throw, Mod TT 20px.png Quick Return (Mod TT 20px.png Volatile), Mod TT 20px.png Rebound (Mod TT 20px.png Volatile), and Mod TT 20px.png Whirlwind.

Advantages:

  • Normal Attack
    • Very high damage
    • Above average attack speed
    • Very high status chance
  • First Heavy Attack - Toxic Spines
    • Highest multishot
    • Highest average number of procs per shot
  • Second Heavy Attack - Toxic Spines
    • Highest multishot
    • Second highest average number of crits per shot behind Quassus.png Quassus
    • Highest average number of procs per shot
    • Above average damage

Disadvantages:

  • Normal Attack
    • Very low crit chance
    • Very low attack range
    • Below average disposition
  • First Heavy Attack - Toxic Spines
    • Very low crit chance
    • Low average number of crits per shot
    • Low damage
    • Low status chance
    • Below average crit multiplier
  • Second Heavy Attack - Toxic Spines
    • Very low crit chance
    • Very low status chance
    • Below average disposition
    • Low crit multiplier

Acquisition

The Arum Spinosa's blueprint and components can be acquired from Tier 2 (Lvl 40-50) Isolation Vault Bounties (normal and Arcana). The blueprint and all components can be traded.

Item Source Chance Expected Nearly Guaranteed
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / A 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / C 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / B 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / A 4.69% ~ 21 Stages 143 ± 47 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / C 4.69% ~ 21 Stages 143 ± 47 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / B 4.69% ~ 21 Stages 143 ± 47 Stages
Pouch.png Guard Isolation Vault Lvl 40-50 / A 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Isolation Vault Lvl 40-50 / C 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Isolation Vault Lvl 40-50 / B 3.75% ~ 26 Stages 180 ± 60 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / A 7.50% ~ 13 Stages 88 ± 29 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / C 7.50% ~ 13 Stages 88 ± 29 Stages
Pouch.png Guard Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / B 7.50% ~ 13 Stages 88 ± 29 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 1 / A 12.50% ~ 8 Stages 51 ± 17 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 1 / C 12.50% ~ 8 Stages 51 ± 17 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 1 / B 12.50% ~ 8 Stages 51 ± 17 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / A 6.25% ~ 16 Stages 107 ± 35 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / C 6.25% ~ 16 Stages 107 ± 35 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / B 6.25% ~ 16 Stages 107 ± 35 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / A 7.81% ~ 12 Stages 84 ± 28 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / C 7.81% ~ 12 Stages 84 ± 28 Stages
ArumSpinosa.png Blueprint Arcana Isolation Vault Bounty Lvl 40-50 Stages 2 & 3 / B 7.81% ~ 12 Stages 84 ± 28 Stages
ArumSpinosa.png Blueprint Isolation Vault Lvl 40-50 / A 6.25% ~ 16 Stages 107 ± 35 Stages
ArumSpinosa.png Blueprint Isolation Vault Lvl 40-50 / C 6.25% ~ 16 Stages 107 ± 35 Stages
ArumSpinosa.png Blueprint Isolation Vault Lvl 40-50 / B 6.25% ~ 16 Stages 107 ± 35 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / A 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / C 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Stage 4 of 5 / B 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Isolation Vault Lvl 40-50 / A 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Isolation Vault Lvl 40-50 / C 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Isolation Vault Lvl 40-50 / B 2% ~ 50 Stages 341 ± 113 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / A 4% ~ 25 Stages 169 ± 56 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / C 4% ~ 25 Stages 169 ± 56 Stages
Link.png Rivet Arcana Isolation Vault Bounty Lvl 40-50 Final Stage / B 4% ~ 25 Stages 169 ± 56 Stages

All drop rates data is obtained from DE's official drop tables. See Mission Rewards#Standard Missions for definitions on reward table rotations. Drop chances are rounded to two decimal places, following the official drop tables repository.
Expected means a player can expect to obtain at least one of a drop every N attempts on average.
Nearly Guaranteed refers to the total number of attempts a player needs to obtain a 1 in 10^2,3, and 4 probability not to have recieved a single drop (99%, 99.9%, and 99.99% probability to have received at least one drop).
The combined probability of multiple drops is 1 - ((1-A%) * (1-B%) * ...) (add drops in same rotation)

For more detailed definitions and information, visit here.

Manufacturing Requirements
CreditsLarge.png
20,000
Pouch.png
2
Link.png
1
TrapeziumXenorhast.png
1
CabochonEmbolos.png
1
Time: 12 hrs
Rush: Platinum64.png 35
MarketIcon.png Market Price: Platinum64.png N/A Blueprint2.svg Blueprints Price:N/A

Combos

Default Combos of Stance or Weapon
Combo Name Attack Multipliers
and Forced Procs
Avg Dmg Multi/s Length Animation
Arum Spinosa Heavy (unofficial)
(Heavy Attack)
Heavy Attack
Default Melee Attack 2x 250% DmgSlashSmall64.png
Ranged 18x 250%
Heavy Attack
Default Melee Attack 500% DmgSlashSmall64.png
Ranged 9x 500%
0.0%/s N/A ArumSpinosaComboHeavy.gif
360° Attack 360°/Spin Attack • Slam Slam Attack • Ranged Ranged Attack • Thrust Thrust Attack
View Full Legend
Key Inputs
Default Melee Attack Basic Melee  (PC default LMB or E; XBX, PSN, and NSW default right button)
Heavy Attack Heavy Attack  (PC default MMB; XBX, PSN, and NSW default left trigger)
Block Block  (PC default RMB; XBX, PSN, and NSW default right trigger)
Up Forward Movement  (PC default W; XBX, PSN, and NSW default tilt up right thumbstick)
Multipliers and Hits
Default Melee Attack
 200%
 Attack does double damage 
Default Melee Attack
 2x 100%
 Attack hits twice 
Forced Procs
DmgImpactSmall64.png Knockback
DmgPunctureSmall64.png Frailty
DmgSlashSmall64.png Bleeding
DmgBlastSmall64.png Flashbang
Knockdown b.png Knockdown
Lifted b.png Lifted
Panel.png Stagger
Ragdoll b.png Ragdoll
Finisher b.png Finisher (front, back, or ground) 
DmgImpairSmall64.png Impair (PvP only) 

*Combos that are shared across all stances of the weapon type.
Average Damage Multiplier per second only applies to single target DPS calculations. Note that hits marked as "Slam Attacks" will not apply at the epicenter of a single target hit so these will not be accounted for in avg dmg multi/s calculations.
Combo animation lengths are approximate and are only accurate within a few tenths of a second.

Notes[]

Trivia[]

  • The name of the weapon may have come from the English word "Arum", and Italian word "Spinoso".
    • The arum is a flowering plant seen in Europe, northern Africa, and western and central Asia.
    • "Spinoso", in Italian, means "Prickly", or "Thorny".

Media[]

Patch History[]

Hotfix 29.6.2 (2020-12-22)

  • Fixed issues with colour customizations not saving on the Arum Spinosa projectiles.

Hotfix 29.5.9 (2020-12-15)

Sporothrix and Arum Spinosa Blueprints are now tradable!

To balance out the Weapon Blueprint drop % reduction we’ve made the Sporothrix and Arum Spinosa Blueprints tradable. The Sporothrix and Arum Spinosa parts were already Tradable, but it’s now one step further.

Hotfix 29.5.3 (2020-11-23)

  • Fixed the actual base Blueprint for the new Arum Spinosa not being in Rotation A of Deimos: Arcana Bounties. Arum Spinosa Blueprint is now in Rotation A at 18%.

Update 29.5 (2020-11-19)

  • Introduced.
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