Talk:Research & Development/Fenyr Supersport/@comment-220.227.103.136-20160818192715/@comment-220.227.103.136-20160819124827

but of course until now i didnt know the boxes dont expire if left unopened for a long time, which also was often partly a reason i open up even the long pending random boxes as i didnt wanna take the chance lest they contain uncommon engine cards or mid/adv techs.

i guess now i too will leave most of them unopened until necessary.