The "Gifts of the Dragons" Special Offer allows players to receive reward Caskets for purchasing a certain amount of Reals:

•  Casket of Merit (for 10);
•  Casket of Reward (for 30);
•  Casket of Retribution (for 90).

When purchasing Reals, you will first receive a number of the most expensive Caskets that corresponds with the purchased sum (e.g., 350 are enough to get 3 Caskets of Retribution). Then, you will receive a number of less expensive Caskets for the rest of the sum (in the above example 80 remained, so it would be 2 Caskets of Reward). Finally, you will receive the least expensive Caskets (in our example, the remaining 20 would be enough to acquire 2 Caskets of Merit).

Inside the Caskets, you might find:

Levels
	10	30	90	-
10-18
19-27
28-36
37-45
46+

Collection elements can also be found in reward Caskets.

Having completed the Fortune's Favorite Collection, open the Bank menu (or the Collection screen) and click the Complete to receive a 48-hour bonus button. After doing that, you will receive a  15%-bonus to any Real purchases made in the following 48 hours. 

Having completed the Treasures of Tartu Collection, open the  Bank menu (or the Collection screen) and click the Complete to receive a special reward button. After doing that, you will receive the largest Casket – Casket of Plenty. In addition to the most powerful Consumable Items, warriors of levels 10 to 31 might find inside this Casket a Stone Guardian's Hammer, and warriors of level 32 and higher – an Ice Guardian's Hammer.