10 packs of my brother, therefore 4 DEX and 6 DRX:
1x Shiny Reuniclus
1x Groudon EX FA
my 39 packs Dark Explorers:
1x Raikou EX FA
1x Groudon EX
--> Randomizer works just as things would happen in reality =P Don't think you can do box ratios (as you can't do them for RL DRX boxes too) cause it...