Claw of Lightning or Rogue Epic for offhand?

[Cecily]

Primal spear -> Mrylo + Ragebringer is BIS for QoL. Tabithaa who was and is afaik the best geared rogue on Green bought a Vyemm's Fang to run main hand and used Mrylo to swap for backstabs, with epic offhand. Conclusion was it can parse higher, some of the time, and overall was not worth the effort. Vyemm alone can outparse Mrylo, some of the time. Not worth using over Mrylo.

As I mentioned, most of your parse comes down to buff preparation. Also having gear that will almost certainly cost more of your life than the value it provides (AoBx3, Dain Ring, Mrylo/Vyemm). Then it's just RNG. Procing avatar quickly makes or breaks your parse. And Claw of Lighting is a DKP drain. Just use your epic. It's better.