I can't find anything definitive and the usual information/stat sources don't really list anything at all about it :/ It's existence on the interwebs feels positively forgotten in lieu of Voltaics. All I've really found is one comment that they are the same stats as Voltaics but with the added bonus of the Runic Lens but nothing about what that supposed bonus is. And that seems to contradict other information I am reading about Voltaics and Atlantids.
Anyways, I'm just wondering if there is any benefit to using the Atlas Sceptre over a Voltaic or Atlantid (neither of which I have yet as I'm currently going through They Who Returned).
I don't have the stats on mine anymore but it was significantly worse than the one I already had so I never used it.