It's an event in which players compete in the Arena Tournament and try to get the highest rank they can. At the end of the event the game captures the current Tournament rankings and distributes the rewards accordingly. The higher the rank, the better the reward.
How are the Tournament Week and the Arena Tournament connected?
The Tournament Week can only be held while there is an active Tournament Season. Usually, the Tournament Season and the Tournament Week start at the same time. The Tournament Week lasts 7 days. After its end players receive their rewards and the Tournament Season goes on.
Your season rewards don't depend on whether you participated in the Tournament Week or not.
How can I participate in the Tournament Week?
Just join the Tournament and fight. All Tournament participants who completed their placement matches are considered as Tournament Week participants.
What can I get as a reward?
You can get high level charms, spells, boosts, elixirs, catalyzers, gems and even unique items as a reward.
Your rewards depends on your rank at the end of the Tournament Week. The higher your rank, the better the reward.
IMPORTANT: In order to receive the reward you must complete your placement matches (initiate and complete 20 fights in the Arena Tournament). If your Tournament Rating isn't visible, you won't receive the reward.