Board Thread:Game Discussion/@comment-18059447-20131222181837/@comment-11107497-20131222195924

well, they're mcav so they most likely played the pvp before last, which could easily rack up a few thousand transmetal.. that event also had the unlimited wins exploit (not just the most recent). Transmetal upgrading costs very little credits. 500 credits per transmetal, 303?ish transmetal for a full mtm, so you only need to sell a couple of hundred medals to earn enough credits for that.

That many megs is "only" $540. Just looking at the deck power leaderboard.. you can see that many have paid mobage a lot of money this event. Most of it is the same as what they would normally pay, it's just easier to see what that translates to now.