What now with the anti-Light arms race?

[+robardin he/him]

So after reading RoW and before WaT was released, I had analyzed that there was now a significant power imbalance between Team Odium and Team Dalinar with the discovery of anti-Light.

Producing weapons with raysium tips to "suck Investiture out" was already something the Fused had to drain Radiants of Stormlight to prevent healing or Surgebinding (spear tips and daggers), and reversing the direction to "inject" Investiture was not all that useful a property, except to transfer captured Stormlight into a gem, or a special case like wanting to inject Voidlight into the Sibling.

With the discovery of anti-Light, though, injecting anti-Voidlight could permanently and violently end a Fused or destroy a voidspren; and similarly, anti-Stormlight could kill a Radiant spren, or cause a Radiant full of, or drawing in Stormlight to die.

Creating anti-Light is quite simple, once known: you just need a vacuum, be able to reproduce the right tone for the Light (including having a metal plate or strip of the right length/frequency), and the Intent to invert the tone for the Light you had on hand.

But, these injection weapons still require raysium, something Team Dalinar would only have in the form of captured weapons. And the "basic" Light to invert? Voidlight was hard for Team Dalinar to acquire (must capture gems filled by the Song of Prayer, or direct touch of Odium as we see in his meeting with El), while Stormlight could be acquired just by leaving gems out in the periodic highstorms.

So Team Odium was WAY more able to produce anti-Stormlight weaponry than Team Dalinar could have responded with anti-Voidlight weaponry.

But now... There is no more highstorm. There is no more Stormlight, or even Voidlight. There is only Retribution, and Warlight.

So what now?

First, where did all that raysium come from, and will there be any more? Was Odium able to just "drop" raysium for his followers, or was there some kind of a mine with it that they could dig it out and refine?

If it was the latter, that should be stable even after Retribution's Ascension. Otherwise, if Harmony on Scadrial is an example, it's pretty much impossible for a merged Shard to "drop" pre-merged godmetal (if that is even under their conscious control); it'd come out as taravangium, or whatever the metal for Retribution should be called.

Second, was all the anti-Stormlight or anti-Voidlight also inhaled by Retribution? If not, what effect would they now have on someone holding Warlight (or Towerlight)?