how to get Completion Grant in dragons of atlantis

how to get Completion Grant in dragons of atlantis - when you want to upgrade your buiding in your city into level 10 you not only need a odds such as gold, food, wood, ore/metal and stone, you also need 1 completion grant.

you can get completion grant in a daily fortune or you can buy in item shop for 40 ruby.. it a dificult to get this item in daily fortune, it maybe like 1000:1 so i suggest if you have enough ruby, you have to buy this one.