I drag the cards when I want to use them but when I first got the game I didn’t know what any of the cards did and I felt punished for trying to find out.

Congrats

On Android it works like a virtual mouse. Touch your cards so one is pulled up higher so you can read it, release your finger making sure not to activate the card, the card is still higher up, now touch up in the middle of the screen in a failed attempt to deselect the card. More often than not, that touch intending to do nothing spends the card because it assumed I drug it up onto the field.

This game is so frustrating on my phone.

I really REALLY hope that if/when this game comes to mobile they ditch the idea of a virtual mouse. Fantastic game ruined by bad UI design.