Normal Atziri Drop Rate

I'm in Regular SSF, and have killed normal Atziri 13 times so far this league. {Quantity varied between 0-13, Magic Find between about 20-103}

Drops:
9 x Atziri's Promise (Flask) 70%
2 x Doryani's Invitation (Belt, both Fire) 15%
2 x Atziri's Step (Boots) 15%
0 x Doryani's Catalyst (Mace) 0%

Last League, i found at least 3 Catalysts in about 40 kills. It feels like the drop rate on her Unique's has gone down. The last two times I killed her, I had 103% Magic Find and 0 deaths, yet both kills resulted in crappy Flasks.

Did they nerf her drop rate this season?

As far as I'm aware, Catalyst drops have always been about 10%. Your data seem consistent with that.

"

I had 103% Magic Find and 0 deaths

Neither of these things will affect which unique she drops.

does Quantity impact her drop rate?

I have ran normal atziri 10 times.

1 catalyst and a bunch of flask.