You also wont be forced to play one or two drops that dont fit your strategy just for the sake of cheapening your late game cards
Manipulating the top of your deck to choose which one of the two cards goes into the graveyard and which one is returned to the top of the library is essential for strategizing your future turns
You craft your deck pre-match , drawing from a massive card pool ( around 20,000 at this point)
Bolas citadel takes care of all those issues
Even if you fail to flip, a wizard is not the worst creature type to have floating around
Paying four mana to draw one card seems like a terrible rate, and by all means, it is, but there are two crucial things to consider before you dismiss this card: the mana cost is entirely generic, and it can snowball fast