I opened the rank 11 Coven’s favor cache “Lesser elements of nemesis” and a mythic ring dropped and I thought ring of starless skies out of this cache you have got to be kidding me!
I picked it up and in my inventory it shows as a magic/blue ring called “Powerful ring” item level 722 and it gives +74 strength and it has a socket.
That is not a ring of starless skies nor a mythic ring.