“Subvert the Elder Rune or Larloch and his liches”

Alae! In your Forging the Realms article on the beholder game of the Vellurith, one of the stated goals is “Subvert the Elder Rune or Larloch and his liches”. Is that supposed to be the Twisted Rune, or is this a distinct sinister lich cabal? A distinct cabal. And their name proclaims what they're interested in, which is a rune that subverts other runes and so can open wards, unseal bindings, and open or close gates/portals.
Oh, and congratulations: you've stumbled on one of the secrets of the Realms!#Realmslore

— Ed Greenwood (@TheEdVerse) August 31, 2021