I'm using the supercard dstwo and so far the errors ive gotten were:
1. touch screen not responding after a number of battles
2. game freezes when entering some rooms
3. game freezes when attempting to view stats
I've never tried training an Ampharos until VERY recently o3o
I had to buy Heart Gold again because my sister's dog chewed through all my old games and this time around I caught a Mareep.
I've owned both iPhone and Androids over the years. Both are just as good, other than Apples higher price. I'm currently on Android, Samsung S21 I think, and very happy with it.