I use the top method personally. As long as there isn't another bakugan on the card I have a 6/7 success rate. (I just finished rolling 50 times to find out)just lightly spin the bakugan like a top with the magnet down and combine with a slight push for direction.Also, something that I'm not sure is legal but is fun to do: Some bakugan such as blade tigrerra (sorry about the spelling) have legs designed in such a fashion, that when deployed make it very easy to land it on the card. Just deploy the legs and slide it onto the card legs first~ I don't do it during actual games because I'm not sure if it is legal, but it works almost every time.