If you were willing to remove cards in your library from the game, Whirling Catapult was a permanent hurricane for you to use whenever the need should arise
If the card has an Evolution Base Effect, it is now able to activate its Evolution Base Effect
4 Pikachu Promo A Full Art Yes, another entry of the same card
If the app advertised that it was a paid subscription service, it would be no issue at all, but I think even the app designer and the AI that helped them make it understand that nobody would use the app if it were advertised as paid, especially when much easier alternatives exist
The first being the Pharaoh's Tour Championship in December 2005 and the second being the Shonen Jump Championship
A mix of interaction and flash creatures gives you all the control, and you have more options over how you use your mana than youd have if you need to choose between tapping out for a 2-mana creature or holding up Counterspell