If you really want to get optimized you can start adding a Blink package for Pantlaza with cards like Teleportation Circle and Ephemerate so you can discover way more mana efficiently, but even ignoring that you're still going to be happy with Pantlaza in the command zone
Combine this with a steady flow of card draw and you have Omniscience at home
There are cards in this deck that do this kind of thing a lot better, so Im baffled as to why the face card is so weak and pathetic by comparison
Addendum If you cast this spell during your main phase, instead scry 3, then draw three cards
Beyond that good Ole elesh norn grand celobite it a powerhouse This is just a few ideas ramp =card draw kinda so adding more ramp may fix the card draw issue you were talking about
Far from the whiplash we expected jumping into the classic horror-inspired set after Bloomburrows cutesy fable, we ironically felt right at home in the house of horror