I think you need a better win condition than just 3 Mishra's Factory.
Monastery Mentor,
Myth Realized and/or Jace seem to fit. Maindeck B2B is also terrible when literally your only win condition is manlands. Put them in the SB?
The 4th Force of Will and 3rd Force of Negation are better than the 1st Disrupting Shoal. I hope Shoal is just a placeholder for budget reasons.
4 Day's Undoing seems excessive. It's a cute interaction, but it's only good with Narset out. The interaction is also much weaker if you have many cards in hand and they have few (e.g. because you are Standstill control and they are a faster deck). Also drawing 7 cards doesn't win you the game unless those cards do something. So far all you can do with those cards is cantrip more, 2-for-1 counter a lot of spells, and wrath the board. With more win conditions or lock pieces those cards should give you more value.