A few things you could consider cutting: As Foretold - this really works much better in decks that have more instants/counterspells, since it works on other people's turns as well. Additionally, the odds of getting this card out + having it survive long enough to be useful make it just not worth it. I've seen it played at my table and it's impact is considerably lower than something like Rhystic Study, which would make a great replacement.

Similarly, Omniscience and Planar Bridge seem too expensive to really justify using.

Grell Philosopher and Grazilaxx, Illithid Scholar would be good replacements - Philosopher to turn your creatures into ramp/tech, and Grazilax for some more draw.

thefiresoflurve I took out Grell Philosopher and Grazilaxx, Illithid Scholar because grell relied on an opp having an artifact and graz was only one draw per battle I only added Omniscience because jank love and Planar Bridge to search Bolas's Citadel and Omniscience

Fair enough, Grell would work well at my table, but not all tables are like mine. And on Grazilax, you're right, maybe a better draw tool would be Kindred Discovery or Reconnaissance Mission (harder to remove, too).

Also, Dimir Guildgate > Vivid Creek.

Arvinox, the Mind Flail / Mind Flayer, the Shadow is a horror that steals stuff from the bottom of libraries