So 39 cards is still a huge chunk of cards to cut. You also created so many different categories of cards that make it.. seem less obvious where you have to many?
I tend to go with Carddraw/Ramp/Targeted Disruption (including Removal, but also Protection) and MassDisruption (Boardwipes and most Hatebears etc.)
This way I instantly can see where I can cut down on cards and also can see which cards I have tagged and which dont.
For example, the Heraldic Banner isnt in your ramp package when it surely should be.