Bondsmith Primer (Spoilers for Oathbringer and RoW)

[dstokes7]

As a Bondsmith, Dalinar has the ability to summon a perpendicularity and to directly infuse individuals or spheres with Stormlight drawn from the Spiritual Realm. It occurred to me, though, that Radiant powers require Stormlight to function. So does that mean Dalinar must already be holding some Stormlight before he can summon more? If Dalinar somehow got stuck in the middle of nowhere without any spheres or Stormlight, could he still summon a perpendicularity, or would he first have to wait to be "primed" like an old-fashioned pump in the next Highstorm?

[Fizz9]

From what I know Dalinar does not need Stormlight to summon Honor's Perpendicularity. He is drawing on Honor's power directly.

From the Coppermind (https://coppermind.net/wiki/Order_of_Bondsmiths)

Quote

Generating Investiture and Opening a Perpendicularity
As Bondsmiths are deeply Connected to powerful spren that serve as sources of Investiture, unlike other Radiants they are capable of pulling through Investiture on demand,[23] each spren allowing access to its associated Light. They may use this ability to overcharge another Radiant with Light directly.[62] This process is physically taxing for the Bondsmith. However, as most Radiants primarily make use of Stormlight, this is perhaps most useful for the Stormfather's Bondsmith, although the other Bondsmiths can still generate their respective Lights for personal use. It is uncertain how exactly this is done, but it is not necessary for the Bondsmith to be holding some Light already in order to pull more over into the Physical Realm.[63] The exact mechanics of this ability are unknown, but it seems most likely that they are pulling it directly from the Spiritual Realm.

 

Edited May 16 by Fizz9

[earthexile]

I don't think so. We haven't seen a Night Watcher Bondsmith yet, but we do know that Cultivation's touch (which seems to at least somewhat mimic a Night Watcher booncurse, whether or not She is doing so on purpose) made Lift able to synthesize Lifelight. The Sibling produces their own Towerlight, and the Stormfather is part of the force that brings Stormlight. These greater spren are connected to greater forces, and when things line up right they can draw forth their own Investiture rather than gathering it from what's already in the world around them.