I’m sure this (or similar) has been posted before, but I’ve been enjoying thinking about it so I’m posting here for discussion opportunity.
We have a couple of confirmed cases now of living shardplate. Kaladin swears the fourth ideal and gains his shardplate, composed of windspren. Jasnah’s living plate is confirmed to be made of logicspren. (1)
What makes a spren a likely candidate to make up a radiant’s sharplate (based on Kaladin and Jasnah’s examples):
• The radiant is commonly around this type of spren, or vice versa
• The spren is attracted to things the radiant does (such as windspren appearing when Kaladin “flies”)
• The spren is not a “higher” spren
More criteria that are my personal opinion only:
• Not an emotion spren. My reasoning is that emotions are fickle and fleeting, and thus attracting emotion spren would be inconsistent. Gloryspren fall into this category.
• Not an “unsavory” spren, such as rotspren, deathspren, plaguespren, decayspren. My reasoning is that these would be less likely to be “attracted” to things the radiants do.
Here is a breakdown of confirmed shardplate and my guesses. What are your thoughts?
Confirmed:
• Windrunners = windspren
• Elsecallers = logicspren
Likely:
• Edgedancers = lifespren
• Lightweavers = creationspren
Personal guesses:
• Willshapers = musicspren (I’m basing this solely on the fact that the stones “sing” to Venli)
• Dustbringers = flamespren
• Skybreakers = starspren
• Bondsmiths = bindspren (2), or possibly a different spren type for each bondsmith
No idea, maybe a spren we haven’t seen yet:
• Truthwatchers
• Stonewards
Other potential shardplate candidates:
• Concentrationspren
• Gravitationspren (3)
• Luckspren (4)
(1) Jasnah’s shardplate is confirmed to be made of logicspren in a WoB: https://wob.coppermind.net/events/406-general-reddit-2020/#e14477
(2) Bindspren are the tiny spren Kaladin sees sticking a rock to a wall when he uses a full lashing in Way of Kings chapter 57.
(3) Gravitation spren are found around heavy objects. They are used by singers to take on work form.
(4) Luckspren are arrow-shaped and bond to greatshells and larkins.