Psi Aeterna IV - Legendary Pulse Rifle

Psi Aeterna IV is a Pulse Rifle Arc Special in Destiny 2. Review its base stats, perk pool, and masterwork options.

Weapon overview

Pulse Rifle - Arc - Special - Micro-Missile Frame

Source: Random Perks: This item cannot be reacquired from Collections.

Alone, unending, peerless.

Fires self-propelled micro-missiles that explode on impact for high damage.

Volatile Launch
This weapon is optimized for an especially explosive payload.
• Greatly increases blast radius
• Slightly decreases handling speed
• Slightly decreases projectile speed
Confined Launch
This weapon's launch parameters are particularly stable.
• Greatly increases stability
• Increases blast radius
• Decreases projectile speed
Countermass
This weapon is weighted for vertical recoil.
• Greatly controls recoil
• Increases stability
• Increases handling speed
Hard Launch
This weapon's launch barrel is optimized for projectile speed.
• Greatly increases projectile speed
• Decreases stability
• Slightly decreases blast radius
Linear Compensator
This weapon's launch barrel is well-balanced.
• Slightly increases projectile speed
• Slightly increases blast radius
• Slightly increases stability
Quick Launch
This weapon's barrel provides faster projectiles and much faster aiming.
• Greatly increases handling speed
• Increases projectile speed
Smart Drift Control
This barrel is broadly optimized for firing control.
• Moderately controls recoil
• Increases stability
• Increases handling speed
• Slightly increases projectile speed

Appended Mag
This weapon's magazine is built for higher capacity.
• Increases magazine size
Tactical Mag
This weapon has multiple tactical improvements.
• Slightly increases stability
• Increases reload speed
• Slightly increases magazine size
Extended Mag
This weapon has a greatly increased magazine size, but reloads much slower.
• Greatly increases magazine size
• Greatly decreases reload speed
• Increases airborne effectiveness
Alloy Magazine
Faster reload when the magazine is nearly empty.
Flared Magwell
Optimized for fast reloading.
• Slightly increases stability
• Greatly increases reload speed
High-Velocity Rounds
This weapon's projectiles are particularly light and quick.
• Increases projectile speed
• Increases reload speed
Implosion Rounds
This weapon's projectiles travel faster and have a controlled explosion.
• Increases projectile speed
• Greatly increases stability
• Decreases blast radius
High-Explosive Ordnance
This weapon's projectiles are larger and travel faster.
• Increases blast radius
• Slightly increases projectile speed
• Decreases magazine size

Blast Distributor
Dealing splash damage grants a bonus to Grenade stat.
Eddy Current
Temporarily increases reload speed and handling after sprinting or while amplified. This effect is improved when you are amplified.
Beacon Rounds
Final blows with this weapon grant your projectiles tracking and increase reload speed. Dealing further damage extends the duration.
Stats for All
Hitting three separate targets increases weapon handling, stability, reload, and range for a moderate duration.
Reverberation
Final blows with this weapon increase the size of its detonations for a short duration.
Trickle Charge
Receiving or discharging Bolt Charge partially loads the magazine from reserves.

Collective Pugilism
Collecting an Elemental pickup or destroying a Tangle grants this weapon a stacking period of melee energy generation on hit. Throwing a Tangle provides additional time.

Elemental pickups include [Solar]Firesprites, [Void]Void Breaches, [Arc]Ionic Traces, [Stasis]Stasis Shards, and [Strand]Strand Tangles.
Elemental Honing
Dealing unique elemental damage grants this weapon a stacking damage bonus. This bonus is increased for kinetic weapons.
Jolting Feedback
Dealing repeated damage with this weapon inflicts Jolt.

While amplified, Jolt is applied faster.
One for All
Hitting three separate targets increases damage for a moderate duration.
Rolling Storm
Final blows grant Bolt Charge.
While amplified, final blows grant additional Bolt Charge.
Adrenaline Junkie
This weapon gains increased damage and handling from final blows with grenades or this weapon.

Accelerated Assault
Dealing sustained damage with this weapon loads a small amount of ammo from reserves, or removes heat, and slightly increases damage.
Vanguard Determination
After using your class ability, final blows with this weapon grant you bonus damage resistance.
Wild Card
Final blows with this weapon have a chance to create experimental submunitions at the target's location.