When you complete a Collection, you transfer to the Grand Collection and unlock the Grand Prize Chest, which includes valuable rewards — such as boosters, cash, and a unique profile badge!

Once you claim the rewards, your cards and duplicates are reset. However, your Star balance (used for exchanging duplicates) is not reset — it carries over to the Grand Collection.
⭐ Please note that Stars only transfer from the regular Collection to the Grand Collection, and not between different Collections.

After that, the Grand Collection begins!

After completing the Grand Collection, the Thematic Collection will unlock with a different look. This stage works like the Grand Collection but allows you to keep progressing through additional rounds. Each time you complete the Thematic Collection, it starts again, and you can continue finishing it as long as the Collection timer is active.