The fact that the card has been reprinted in four different Commander precons certainly helps matters, too
Zeldas design was based on two strong abilities that have an immediate impact on the game
At this point, Magic almost seems too big to fail (which is probably a good thing, considering some of the cards Wizards has printed and decisions it has made over the past couple of years), but this certainly wasn't the case in 1996
However even we were surprised at how much Pokemon TCG Pocket has taken off
You can only use this effect of "Crowley, the First Propheseer" once per turn
Most Magic players depend on intuition and experience when it comes to making this all-important decision, and while this style of deck building is fine, there is another more scientific way: math