I would increase the cost of following weapons:
Trident.
I would decrease the cost of following weapons.
stiletto ( compared to the others that are more game changing like disco I think it's priced to high )
Fahrenheit ( it's not that strong of it's own, only in a plain fire stall )
I would increase the cost of following shields:
permafrost ( it's so powerful, top 4 shields, must cost more )
I would decrease the cost of following permanents:
Sanctuary ( it's essential for light, making this so expensive will make things very hard for them )
I would increase the cost of following spells:
Stone skin ( to balance SBLAD )
I would change the cost of following spells:
deflag and steal ( compared to the cost of pulvy and sofo something needs to be changed )
All in all great work!