Do Crown of Dusk and Bellowing Dragoncrest Ring Buff Dark Sorceries?

[Gargamel]

I've been researching and I just can't figure this out. I see lots of builds on the mugenmonkey website that use dark bead & pursuers, along with crown of dusk and bellowing dragoncrest ring, but when looking on the wiki it doesn't state if either buff dark sorceries.

For example here:
https://darksouls.wiki.fextralife.com/Bellowing+Dragoncrest+Ring

It does not list dark sorceries.

Now the Crown of dusk page makes no mentions of specific sorceries that are buffed.

This leads me to believe that the Bellowing Dragoncrest ring does not buff dark sorceries, but that crown of dusk probably does since you take a huge nerf in wearing it.

Any ideas?

[Mini_Ghost]

it dose I notice the diffrence

[JamuThatsWho]

Crown of Dusk and BDCR buff all Sorceries and Pyromancies, and they stack; with both equipped you get a 40-46% boost depending on the spell.