As mentioned above, their are both pros and cons
This saved me from searching one at a time for frequently used cards
It's possible that you might want to play more than one if you have Ol' Beefslab in your collection, so give him one last ride before we put him to pasture for good
With this, could Jeskai Prowess have some legs (or wings) over the traditional Blue-Red Prowess build
Best of all because Draft and Sealed (the most common prerelease formats) only use cards people open in packs at the event you dont have to come with a deck, or worry about some decades-long MTG veteran walking in with a super powerful deck
Shes a commander that grows harder to remove, and more dangerous, with each passing turn, without having to risk her life in combat to do so