all u do is get 3 rental cards at one time fusion/traps/spell/monsters whatever you need
to do, then put the rental cards in your deck after you take them from the guy at the
counter,then after putting them in your deck, go back to the gu that you rented the cards
from then go over the rental tab the press triange then it should say something about the
tab that you are in, then click that then u can clear your rental tab but still keep
rental cards, then repeat the process,note, you can not add these rental cards to your
trunk you need to add them to your side deck to keep them, if you dont put them in the
side deck then the rental people take the cards back but you can only store 15 cards in
side deck, enjoy it if this helped and if you need anymore questions just email me at
wishcash@yahoo.com or My youtube page the name is Meteorga, Just Comment Or Ask best way
to do it is to have 40 weak cards in your deck then keep adding rental cards to that then
when you get to 80 cards, take the ones from your trunk, (NOT THE RENTAL) then put the
weak cards back then you can put more renatl cards back

long process but it work. do this while in the lab
rent 3 cards
add to deck
talk to rental research person but dont rent
look at the 3 you rented and press triangle
scroll to delete selection or tab and click
now the cards are your and you can rent more as long as you keep doing this process