Once the card stock is made, it has to be printed, coated, and cut
Unfortunately, as this particular Ink colour combination has been very successful competitively in the last two sets, players may found some of the more powerful cards from the previous sets to be quite expensive
Cards that are easy to access, work in multiple decks, and remain effective regardless of game state tend to dominate competitive play
The second, while afflicted with the dreaded once per turn clause, is also a great way of building board presence as you shenaniganize elsewhere
Notably, the same doesn't hold true for good cards: if players take the card they scry, but the next card is even better, they still get to draw that better card next turn (barring something like a fetchland activation)
Put a +1/+1 counter on up to one target creature