I am going to the direction opposite to what you are proposing. The paths are very distinct:
1) Marchesa deck can try to use traditional pillowfort cards to
deflect attention from itself, let opponents stack their boards, and then use their boards against them.
2) Marchesa deck can try to use "provocation" cards to
attract attention to itself, keeping opponents' boards clean by using defensive cards to kill their creatures, and then use their empty boards against them.
Propoganda effects mix particulary badly with provocation, because they can just refuse to pay tax and be unable to attack.
I would rather run Rise of the Dark Realms than Worst Fears or Disrupt Decorum or whatever.
Also, I'm definitely adding
Graveblade Marauder.
Confinement might be worth it if it doesn't cost 10 $ or such...
Still, cutting is the main question here.
Any weak links ?