Ars Arcanium Nicrosoil Feralchemy Entry

[Mewmeister he/him]

In the BoM Ars Arcanium, Khriss states that nicrosoil ferrings can store Investiture. Does she mean Investiture in the general sense, or the more localized Scadrian meaning of being able to tap/burn metal? Basically what I'm asking is does Nicrosoil just store the ability to use abilities, or can it store Investiture in general, like breaths or stormlight.

[Oversleep]

As far as we know, it can store Innate Investiture - in short, stuff stealable by Hemalurgy.

[Shqueeves]

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kingbirdy (paraphrased)

Could Feruchemical nicrosil be used to store other Invested abilities, such as a Returned Breath or the abilities of the Knights Radiant?

Brandon Sanderson (paraphrased)

Yes, that's possible.

source

He's mainly RAFO'd questions about nicrosil feruchemy, but based on what happens in era 2 and this WoB, I'd say both