Main caveat is if you get Drolled or not. End board typically becomes weaker if get Drolled.

You can also use vision early if you are confident enough that you already have quickplay in hand and that card is not an important piece(or just gamble with your top deck), so 2 spells will be in graveyard and 1 more to go to fulfill engage's 2nd draw effect.

Since this is combo page is strictly to one card combo line, so end board looks kinda small. But how you utilize engage, time to call Zero, using vision, and even play around with ash & droll really heavily depends on what you have in your hand.