Board Thread:General Discussion/@comment-142.167.72.157-20130120181715/@comment-5947652-20130214052426

Sorry for late reply, very busy :P

Anyways, don't ever upgrade any Commons or Uncommons unless MObage releases some ridiculous Event Uncommon/Common, why? Because its simply not worth it, when you finish the missions not a single Uncommon should even be in there because you can get multiples of a lot of R3s and you can get them transcanned just by doing all the missions.

TL;DR: Never upgrade your Tier 1/2s, always for your Tier 3s. You will eventually unlock most of the Tier 3s through missions and you can get them transcanned.

Offtopic: I have seen a guy with Max-level transcanned versions of Slug, Sludge, Swoop, Snarl and Grimlock, that guy was a true fan who did not care about Mobage's stupid ratings which i don't agree with. Sure he got beaten a lot and probably has a terrible w/l but he gained my respect, didn't battle him again after i saw his deck.