For the Year 1 weapon, see Vex Mythoclast (Year 1).
...a causal loop within the weapon's mechanism, suggesting that the firing process somehow binds space and time into...
― In-game description

Vex Mythoclast is an exotic fusion rifle. It can only be obtained as a random drop after killing Atheon in the 390 Light version of Vault of Glass. It is the only fusion rifle that is equipped in the primary weapon slot.


Vex Mythoclast can be retrieved from one of the following activities/vendors:

Vault of Glass source icon Vault of Glass
This item can drop in the Vault of Glass Raid.


Vex Mythoclast can be upgraded with the following perks:

Column 0Edit

Solar Damage icon Solar Damage
This weapon causes Solar Damage.
Timeless Mythoclast icon Timeless Mythoclast
This weapon has no charge time. It fires a single bolt with each trigger pull.
Infuse icon Infuse
Consume a more powerful Weapon to boost the Attack value of this Weapon.

Column 1Edit

Aggressive Ballistics icon Aggressive Ballistics
More predictable recoil.

Enhanced Impact. Shorter range and more recoil.

Linear Compensator icon Linear Compensator
More predictable recoil.

Slight boosts to range and Impact. More recoil.

Smart Drift Control icon Smart Drift Control
Predictable and controllable recoil.

Penalty to range.

Column 2Edit

Zen Moment icon Zen Moment
Causing damage with this weapon increases its stability.

Column 3Edit

Extended Mag icon Extended Mag
A larger magazine.
Send It icon Send It
Increases range and accuracy.

Harder to handle. Decreases carried Ammo capacity.

Lightweight icon Lightweight
When held, this weapon grants +2 character Agility.

Column 4Edit

Crowd Control icon Crowd Control
Kills with this weapon grant bonus damage for a short time.

Column 5Edit

Ornament perk icon Ornament: Chronoshot
Applies an Ornament to this weapon.



  1. List of Grimoire Cards/Vex Mythoclast