@TheMagicer carefully conserving resources is actually a very important skill in the game.
I play a Iroas aggro deck that can be very explosive, but is bad at drawing cards.
It needs to get to 7 devotion for Iroas, but any extra creatures don't bring much benefit while do bring a lot of risk. If I have no cards in hand and get board wiped, I'm basically done. So I always try to hold back as much as I can after 7 devotion to prepare.
Im glad you're thinking about this! A real level up.
@TheMagicer of course I have other decks that are better at drawing cards so it's fine if they overextend because I can probably draw out of it. Definitely deck-dependent