Gems

Description
Gems are in-game currency that can be used to purchase many items, including Card Packs, Rare Cards, Trap's, Power Potion's or Energy Drink's. A player can also purchase a Start Kit only once, with gems. Often, there will be a deal going for gems or card packs. Gems can only be purchased with real life money and can not be traded.

Location
Gems are found within the Shop of the game, located at the bottom of your My Page.