The Chamber of the Vengeful is a Global exclusive feature in Final Fantasy Brave Exvius and features a new series of Trials. It was announced on a live stream for the game's third anniversary on 29th of July of 2019.
Gameplay[]
The new chamber features strengthened bosses similar to the Chamber of the Indignant, but reserved to bosses exclusive to the Global Version. This can include bosses from previous events.
The chamber features some traits from both Chamber of Arms and the Chamber of the Fallen/Indignant. Players fight bosses in multiple difficulty levels to earn various rewards. Unlike the two aforementioned Chambers, relevant rewards are spread across the difficulties, although the player is encouraged to beat the stages and complete the mission.
What makes this Chamber unique is that it has a series of new extra missions to be fulfilled according to the total number of different units the player has used to defeat the boss monsters. The Chamber of the Vengeful thus encourages repetition and for the player to acquire and use as many different units as possible in each subsequent run, offering better rewards as the player meets certain thresholds on the total of different units employed.
To compensate for the need to retry the challenges, the battles have a low NRG cost. The completion of these missions is locked to each respective difficulty; if the player has used 20 different units across multiple runs in the PRO difficulty, they will not unlock rewards for the ELT difficulty. Vice-versa holds true as well.
Because of the need to use different units, the chamber allows the player to fill the sixth slot reserved for companions with a unit of their own. Even if companions can be used, their units do not count for the total of units used; only the player's own units count.
Like the Final Fantasy Series Boss Battles certain units gain a stat bonus in battle, making them stronger to face certain bosses.