Board Thread:Current Episode Discussion/@comment-25516975-20141009012735/@comment-11295248-20141010112623

JDG-bot wrote: Thanks for the heads up. Upgrading cards is super painful for me right now. By the time I upgrade my r6s newer r5s will be stronger than them. I can't imagine what it requires to upgrade r7s.

Upgrading R7 requires about 55% more materials than a R6, which are already too costy IMHO.