Board Thread:Help Board/@comment-76.5.45.45-20150908031131

I was wondering if there was ever a trade system that could be within friends. To make it balanced and not get units way stronger than your level, have the traded units have to be the same cost or within 2-3 cost from each other. Me and my friend both have units that we want that the other doesnt use, and it feels so bad to get rid of rare summon units. Is this in consideration for development or should I just let my dreams go? 