In MoP remix, bronze is the name of the game. You need bronze to upgrade your gear and you need bronze to buy literally everything, including all the juicy cosmetics and mounts you definitely want.
The good thing is that you get bronze from basically everything — killing mobs, doing quests, doing dungeons, raids, etc. You can scrap gear and gems you don't need to get bronze as well. This means you can play virtually any way you want and you'll make progress towards obtaining all the bronze you need. Of course, though, there are more efficient ways to grind out all the bronze you'll need.
There are a wide variety of daily quests you can do in MoP Remix that will net you a decent amount of bronze. Blizzard recently buffed each of the Bronze Caches to grant more bronze. With these buffs in place, you can now get a few thousand bronze easily every day by running a daily dungeon, heroic dungeon, scenario, heroic scenario,