On a clear board any dork is relevant but as the game goes on and the board fills up you need to rely on removal, bigger dorks, evasive ones, and other forms of key word abilities on them to fight that tempo war
For instance, if you cast Sekki, Seasons Guide with Terror of the Peaks in play, you deal infinite damage to your opponents
What Is the Mana Value of an Aftermath Card
It doesnt matter which face attacked
I really felt the difference in being able to draw cards consistently, and, along with removal, it compensated for my creatures not being the best and not having any bombs
It may well be the case that your opponent would have nothing to follow up with if you just blew up this hypothetical Perilous Vault immediately, but unless they accidentally show you their hand or they empty it before combat by laying their last card in hand down, the decision to defer is something your life total can afford you