During the special Vault Blitz event, you earn Fortune Points for each Fortune Vault you open. If you collect enough Fortune Points, you'll get rewards.
Possible rewards include:
You can open Fortune Vaults with Fortune Keys
You can get the Keys:
- As a Tournament reward
- In the Shop
- From Achievements
The Vault Blitz lasts 14 days, with an interval of 7 days between these special events.