Java Edition:Permanent Vex

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Vexes can usually only be found when they are summoned by evokers, but they are temporary and will vanish after a short amount of time. But a few Minecraft versions have allowed for vexes that never vanish, similar to the Permanent Wandering Trader

Old Vex.gif

Permanent Vex
A permanent vex with the old pre-1.19 model as seen in the infinite dimensions that is is found in.
Type	Entity
Versions Obtainable
Version range	20w14∞

Obtaining

This article is a work in progress. 

Please help in the creation of this article by expanding or improving it.
To do: Write this entire section, mainly with the list of infinite dimensions possible and check if there are any other ways to obtain this mob.