They revealed that after the purchase, they had actually considered returning the card
A lot of people that collected when they were younger have now grown up and have jobs and money, and theyre going back and collecting again
Donkey Kong Country Returns Bedienungsanleitung (PDF)
Finally, the ultimate isn't even good all the timeif you are winning and have a decent board, you might want to keep your own permanents rather than take your opponent's, especially since Aminatou, the Fateshifter is more about synergy than raw power, so your cards will likely be more valuable to your deck than your opponent's cards
A strategy revolving around adding time counters or delaying your opponents suspended spells is just about as niche and specific as you can get, which makes it much more of a sideboard plan
These lands will serve as a base for the rest of the deck to revolve around