Board Thread:New on Brave Frontier Wiki/@comment-69.29.72.156-20150614031040/@comment-26453985-20150630124731

Because then you can single out the unit you desire while trading off your unwanted one. even if you payed that eliminates the luck factor and thus drastically reduces the amount of summons for ALL players, I have a friend willing to give me anima colt I bet he'd happily take my kikuri or kanon. after that Im pretty sure I'd be done summoning for a very long long time seeing as colt is the only unit I need.

The idea to re-roll isn't a bad one, but it's still a significant profit loss, the best bet is to wait until they get the OK from JP to initialize the seperate summon gates, As it looks it seems like there will be many future batches of 7* units all to their own gate. The Lower tier gate will have 3-6* units including older units with 7* updates, Treasures worth exploring.

My advice for free players is to not summon for up to 2-3 months, It's a rather long time but the gems saved now will be assured 7* units later, Use gems to farm imp parade and power up your favorite units since a lot of the units we have now aren't at all underpowered by the upcoming units, Claire&Colt, Elimo, Raaga, Feeva&Griel, Oulu, Edea&Will, Michele, Aurelia, Kanon, Quaid, Diana are still among the best.