Mulligans
General Mulligans
You want to have the quest in the opening hand as activating it turn after babbling book is key to generating value. Note than on the coin you can play the quest and then coin giving you your first step towards the quest.
First things first any game that has a time walk is asking for abuse. That being said this deck has potential to be very busted. With freeze mage being a thing of the past a new deck is bound to take its place. Using freezemage tactics and waygate you can obliterate your opponent easy with arcane giants and archmage antadonias. Feel free to comment on any adjustments that would make the deck better it is just a start still have testing and a new meta but any variant to this build looks very promising.