I have E2 which definitely helps but Acheron is nuts this Pure Fiction with how fast she can build stacks for her ultimate with the right passive. I 40k'd the Cocolia side with Fu Xuan/Himeko/Sparkle/Acheron. So no Nihility even needed though I guess Himeko does apply debuffs through burns.
I also barely broke 20k on the other side even using Herta but we don't talk about that one.
I didn't do guru this year but
azuarc
can be in my sig anyways.