I suppose you can use it to surprise-block a flying attacker, but if youre on offense, youre stuck between two terrible choices
How many packs you'll have to open to get an Enchanted Rare is still unknown, but it is going to be the rarest type of card in the set
For the most part, if a free-to-play game is well-made and fun, I have no problem dropping a few coins once in a while, such as Marvel Snap
On the other hand, blue / white are two of the best blink / bounce colors and also offer some of the most powerful planeswalkers, but in the past, if you wanted to take advantage of these synergies, you'd have to go green to play Doubling Season
The Pro Tour and Regional Championship events have giant prize pools, but even if you don't walk home with much, any promo cards you get will be a prize of their own in due time