[Advice] Poisonous Shadow | Claws or Daggers? Assassin or Trickster?

Hi all! 👋

I'm experimenting with a dual-wield poison crit build for Shadow, but it seems like there's not really an obvious direction to go in:

Both Claw Mastery and Dagger Mastery, as well as notables for both weapons, give bonuses to ailments, leech, and critical strikes.

Similarly, both Assassin and Trickster have notables related to Frenzy and Power charges, ailments, poison, critical strikes.

It's hard to know where I should point the build, since neither sets of options seem to have an identity distinct from their counterpart.

Any ideas?