Currently the game on both devices are for Free and you can choose not to have card to try it out
It's not because they break some amazing combo or recently printed card in order to justify the price spike
The card allows players to swap out characters quickly during gameplay, which can offer a significant advantage and throw opponents off
So far Ive only got Roaring Skies Rayquaza EX but man the texture on that card is amazing
He started as just a mere Wojek, a city guard or police officer of sorts, for Ravnica, and he had all sorts of shenanigans in the story, from becoming a ghost to possession to, well, continuing on
Regarding point 2, this is likely designed this way because her ultimate changes control, but it is naturally resistant to control theft and works well with permanents that change control on their own