Talk:Mirror Dragon/@comment-70.48.19.252-20130821215933/@comment-5772222-20130822093514

In fact the correct answer has been found earlier : Mirrors don't seems to act as a base lvl 1 card but as a lvl max "himself". Taking the MR version as an exemple : when you use it the game take 10% of its stats for the resulting cards, meaning 777 atk and 777 defense.

So if your MR card got less than 7777 atk and def you'll gain some stats in the end, if your MR got more then you're losing stats. Some cards like Chronos, Ordred, DK should fall under the "good" part, most of them will be loosing stats.