She absolutely doesn’t require setup. Her passive works like GF violet which means there is no shields or stealth and no monster (especially if they have hold on ground) is safe around her because any teammates, even weak moves, will kill the tankiest mythics.
I also noticed from 8 games I have played with her (haven’t lost so far), I never used her SS which means she is just 15 cost. I underestimated her Beauty Sleep move. It, not only combos her into her passive, also makes her completely protected (shield and stealth is very good) + you heal yourself fully as if you didn’t take a single hit (with her having full defense stat that should let her live through most ok damaging moves).
She is better than Evie imo and we might see a nerf thread soon about her.