Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Key Cards contain affordable collections of awesome in-game content that can boost your progress, enhance your gameplay, and give you extra fire on the battlefield!
Key Cards contain a random selection of in game items. The current list of contents can be found at: https://console.worldoftanks.com/content/wgwc/
Every Key Card contains groups of items that are at least the same value as the cost of the Card, and there's a strong chance of getting even more than what you paid for!
NOTE: Premium tanks in Key Cards come with one Garage Slot.