History of Vex Mythoclast

The Vex Mythoclast is a Solar Exotic Fusion Rifle from the Vault of Glass raid. Its flavor text describes a causal loop in its mechanism that binds space and time. In Destiny 2 it fires in full-auto, behaving more like an Auto Rifle than a typical fusion rifle, while still taking fusion rifle perks.

Acquisition

• Vault of Glass: a rare drop from the final chest after defeating Atheon in the reprised Vault of Glass. In the original Destiny it dropped from Atheon on Hard mode.
• Check the in-game Collections and the Monument to Lost Lights / Exotic Archive for any current re-acquisition option; sources consulted did not confirm one.

Catalyst

Destinypedia lists the Destiny 2 catalyst as Calculated Balance, granting bonus damage, accuracy and stability for a short time after final blows in full-auto mode. Treat the details as unverified against the current game version.