Nicrosil Feruchemy Twinborn interactions

[NeverTrustAesSedai He/Him]

As far as we know, Nicrosil stores Investiture. My theory is that a Nicrosil Twinborn could store Investiture, and then tap that same Investiture in order to power their Allomancy, the same way that (Lost Metal Spoilers)

Spoiler

the Rioter whose name I forget uses the jar of Dor for Rioting.

In theory, there's no reason this shouldn't be as powerful as that was. Any thoughts or corrections?

[Trusk'our he/him]

1 hour ago, NeverTrustAesSedai said:

As far as we know, Nicrosil stores Investiture. My theory is that a Nicrosil Twinborn could store Investiture, and then tap that same Investiture in order to power their Allomancy, the same way that (Lost Metal Spoilers)

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the Rioter whose name I forget uses the jar of Dor for Rioting.

In theory, there's no reason this shouldn't be as powerful as that was. Any thoughts or corrections?

I've thought before on double nicrosil's interactions, and definitely the most interesting would be that by Compounding their Allomancy they could create a positive feedback loop- since the strength of one's Allomancy determines the power they squeeze out of their metals, Compounding your nicrosil and not storing all of it away should greatly increase your total Investiture output (assuming that's how Feruchemical nicrosil works).

I have a thread here that explores this idea a bit more:

 

[NeverTrustAesSedai He/Him]

Either there must be some check on the power level or they don't know how to use it. In Bands of Mourning, Khriss mentions that there have been three Crasher Twinborn in the history of post-Catacendric Scadrial. Using that as a guide, there should have been at least one Nicrosil Compounder. So why did that not happen, and have a massive effect on Scadrial?

My guess is that, since the Investiture involved is coming from Preservation and Ruin, the effects of Nicrosil Compounding would cause the Compounder to potentially Ascend, in the same way one would upon drawing the mists or burning enough lerasium to become a Savant. Harmony probably knows this, and most likely guides events so that Nicrosil Compounders either are never born, never figure out their powers, or die. That's just speculation at this point, though.

[Trusk'our he/him]

25 minutes ago, NeverTrustAesSedai said:

Either there must be some check on the power level or they don't know how to use it. In Bands of Mourning, Khriss mentions that there have been three Crasher Twinborn in the history of post-Catacendric Scadrial. Using that as a guide, there should have been at least one Nicrosil Compounder. So why did that not happen, and have a massive effect on Scadrial?

I mean, as interesting as the positive feedback loop is, I really don't think it's strictly that powerful. 

I mean, Allomantic nicrosil isn't all that useful on its own, presumably even if greatly enhanced, and any benefit it offers others probably isn't too different from a normal Nicroburst. 

27 minutes ago, NeverTrustAesSedai said:

My guess is that, since the Investiture involved is coming from Preservation and Ruin, the effects of Nicrosil Compounding would cause the Compounder to potentially Ascend, in the same way one would upon drawing the mists or burning enough lerasium to become a Savant. 

I really, really doubt this would work.

Ascension requires an utterly ridiculous amount of power to achieve. Even if the feedback loop of a Nicrosil Compounder could reach such levels without the dropping levels of efficiency the higher the attribute goes, there would be practical limitations too, like the amount of Nicrosil they could get ahold of or store Investiture in.

Basically, I'm thinking they'd have a path to become highly saturated with Investiture, maybe even become a Cognitive Shadow on their own with enough time, but their actual danger is far more restricted. 

[NeverTrustAesSedai He/Him]

2 hours ago, Trusk'our said:

I mean, as interesting as the positive feedback loop is, I really don't think it's strictly that powerful. 

I mean, Allomantic nicrosil isn't all that useful on its own, presumably even if greatly enhanced, and any benefit it offers others probably isn't too different from a normal Nicroburst. 

I suppose that's true. My assumption is that (going by Lost Metal pure Investiture rules) the Compounder could power their own Allomancy with pure Investiture, making it incredibly efficient, and then do ordinary Nicrosil things to another Allomancer, but at the more efficient rate. I guess that wouldn't be incredibly overpowered, though.

3 hours ago, Trusk'our said:

I really, really doubt this would work.

Ascension requires an utterly ridiculous amount of power to achieve. Even if the feedback loop of a Nicrosil Compounder could reach such levels without the dropping levels of efficiency the higher the attribute goes, there would be practical limitations too, like the amount of Nicrosil they could get ahold of or store Investiture in.

Basically, I'm thinking they'd have a path to become highly saturated with Investiture, maybe even become a Cognitive Shadow on their own with enough time, but their actual danger is far more restricted. 

Yeah, I took another look at my post after doing something else for a while and realized how crazy that theory is. 

[CoderDrag0n8 He/They]

8 hours ago, NeverTrustAesSedai said:

As far as we know, Nicrosil stores Investiture. My theory is that a Nicrosil Twinborn could store Investiture, and then tap that same Investiture in order to power their Allomancy, the same way that (Lost Metal Spoilers)

  Reveal hidden contents

the Rioter whose name I forget uses the jar of Dor for Rioting.

In theory, there's no reason this shouldn't be as powerful as that was. Any thoughts or corrections?

I'm pretty sure we still dont know anything about nicrosil. We just have that it 'stores investiture'

[Shadeshadow227]

On 10/26/2025 at 7:12 AM, NeverTrustAesSedai said:

As far as we know, Nicrosil stores Investiture. My theory is that a Nicrosil Twinborn could store Investiture, and then tap that same Investiture in order to power their Allomancy, the same way that (Lost Metal Spoilers)

  Hide contents

the Rioter whose name I forget uses the jar of Dor for Rioting.

In theory, there's no reason this shouldn't be as powerful as that was. Any thoughts or corrections?

Nicrosil stores ability, not raw Investiture like the Dor. Feruchemy, Allomancy, etc., not what is used to power it. You'd still need metals, still need to store and tap attributes, etc. Nicrosil itself also likely wouldn't be affected in the slightest by this, as Allomantic Nicrosil and Duralumin effectively just induce Allomantic catalysis, and the power that outputs depends on reserves of the other metal, not Nicrosil or Duralumin themselves.