Beyond just card evaluation topics that leverage creature size, in terms of deck building, having the mindset of 'trying to have slightly more lands (because cards from 4 mana onwards are clearly strong)' and 'being conscious of preparing ways to use mana in the late game' will likely make it easier to win mirrors and the like
But its not impossible, and some smart trading can make it a lot easier to keep up with the new releases
Which makes sense, this is a card that gives you one token a turn and then its an anthem
This can be a bit of a mind game
The key difference is that, whenever you cast an adventure spell and it resolves, it exiles itself (the card goes on an adventure, according to MTG rules)
Luckily, it looks like Tarkir: Dragonstorm 's release is about to change things for the better, especially because of how the set is handling its Planeswalkers