Board Thread:General Discussion/@comment-45.19.196.241-20150719033339/@comment-26453985-20150719201229

Yeah on average without events you'd have to save up some keys and use those to farm some crystals and such. Right now that xp from there will seem negligible because of all the free stuff being handed out and all the rare summons you might be doing thanks to the free summer gems.

Spending 30 energy per run on super metal parade hoping for a single crystal to appear will seem like a let down, but you're not supposed to just summon a unit and max it right away, This was supposed to take some actual time and effort which will become apparent when the events are done. Just pick your absolute favorites and work on those for a while.