Board Thread:Game Discussion/@comment-10324144-20130605004720

trying to figure out the best way to spend energon and upgrade cards8. right now, i have completed all the missions, and am just redoing the level with acid storm, scourge and jazz's weapon, as these are all level 2 cards.

I thought I saw someone mention transcanning cards before you use them for upgrades...

Am I using energon in the best way? Or is there another school of thought? 