Aurora , Dreaming Guardian is a prime example of this, as she can strategically ward her allies to protect them from magical effects and abilities
Offering Deathtouch and a sizable body themselves, Ezio, Blade of Vengeance is a pretty good blocker too, for what its worth
Having to sacrifice a bit of card advantage for it does make it somewhat balanced though, especially in Lorcana where card draw is at a premium
#5: Crypt Rats Perhaps one of the most potent rats in the history of the game, Crypt Rats sees most of its action in Pauper
Creature-focused strategies can quickly build up a handful of powerful threats, but without some form of evasion, their attacks can be easily blocked
There are lots of situations where you draw it and don't want to use it at first, perhaps you have lots of lands or only very low costing cards, the Chrome Mox will sit in your hand but instead of being dead it will be a get out of jail free card