Ok, so ive been playing skyrtim for quite awhile now, but I never came across this before. I've completed the Dawnguard questline have Serana as my follower, and I recently started Boethiah's calling, which consists of sacrificing a follower, so I told Serana to part ways and now I'm not able to get her back. What can i do to fix this? And is Serana worth the Ebony Chainmail I get for completing the quest?

Do you have another follower? Did you finish the quest and part ways with your current follower. I had a Farkas companion quest that broke and at the end I could not part ways with him.

It may be impossible to recruit her again once dismissed. The only know fix is to reload a save back when she was a follower.

--------------------------- Ebony Chainmail

It's enchanted with a muffle effect as well as a unique area effect that inflicts 5 points of poison damage/sec on the health of nearby opponents.

Aside from the absence of shoulder pauldrons, a black chainmail texture replacing the cloth areas, and minor color changes.

The most unique feature of the Ebony Mail is its "poison cloak" enchantment, which activates when yoou are sneaking or when an enemy is nearby.

While active, the armor gives off a black/green-colored smoke and all parts (including weapons but not hair and facial hair) appear a shadowy black.