User blog comment:Godofcyanide/TFL Domination - A Guide to Success at Transformers: Legends, Part I/@comment-12655751-20130719113345

I am curious about the bonus the cards give for upgrading over Transmetals during Episodes! I have always used Transmetals for upgrading for the simple reason that its a One-Step process :D I would like to know about this bonus and also do the bonus vary with the Level of the cards u use, like Common Cards V/s Rare Cards...does the bonus seem to amplify? I have started selling off all cards off late...if there is a bonus I might just stop doing that!

Thank you!