Board Thread:Game Discussion/@comment-10788505-20130615001823/@comment-10813029-20130615170524

If you're just starting out, the recommend button will do fine. Your deck power includes all event and faction bonuses. The recommend button essentially builds you a deck with the highest attack rating. Once you get more depth in your cards, you will want to tinker with your deck instead of using the recommend button as it often builds you a "glass cannon" deck. Once again, if you're just starting out, it won't matter as you won't have enough quality cards to move around.

I assume you're talking about that one medal they award you when you level up? That never changes, your best shot at getting silver & gold medals are by joining in boss kills and from point rewards during an event.