It one of the most fun game I have ever played it very kind to free player if you have all card in LOR you can get gems that let you craft card epic and champion are safe zone the change to another epic or wild card you can buy card or pets or feild and more it so awsome. (wild epic: If there is no other epic or rare up). (Wild card: pick one card you want get it.) Rare up: it helps free palyer it boost card common can go wild or rare card it same for the rare, epic and Champion.