If our MaroMaroes are capped at 7/7 at the end of our turn, there are plenty of other strategies that can simply go over the top of our creatures, and that's not where we want to be
If you play a deck that gets a lot better if you can give important creatures haste, this card is a role-player
Why Certain Cards Become Highly Collectible A collectible card often gains popularity because of Nostalgia Artwork Competitive success Historical importance Iconic cards frequently remain desirable for decades
Some grading services also authenticate signatures if your cards are autographed
For example, if you control Johann, Apprentice Sorcerer ("Once each turn, you may cast an instant or sorcery spell from the top of your library") and Promise of Aclazotz is on top of your library, you can cast Foul Rebirth, but not Promise of Aclazotz