Talk:Reign of Dragons Wiki/@comment-70.195.4.226-20130911135722

The mirror dragon can replace a rank 1 of the same rarity as the mirror dragon so the rare works with other rares and the sr with othee sr and so on when using it youll get 10% of the dragons points and your card will be boosted 1 level I recommend using it with lvl 1 versions of the card you want to fuse in order to get the best results. But either way youll get 777 555 or 333 added to your cards when used instead of the norm points if a true version of the base card were used