The Training Tower is a location accessible via the world map (Battle menu) where you can train your Heroes to make them stronger. It is available after completing Chapter 1 of the main story.
The tower is divided into 11 stages, known as “stratum”. in general, the higher the stratum, the stronger the enemies (and the more experience points).
Each time you enter the Training Tower, the maps and enemies vary slightly.
Note: To gain experience points, your Hero must survive the battle.
| Stage | Unlock | Suggested Level | Stamina Consumed |
|---|---|---|---|
| Starting Stratum | Clear Chapter 1 | 1 (1★) | 1 |
| First Stratum | 1-5 (1★) | 1 | |
| Second Stratum | 6-10 (2★) | 2 | |
| Third Stratum | Clear Chapter 3 | 11-15 (3★) | 3 |
| Fourth Stratum | 16-20 (3★) | 4 | |
| Fifth Stratum | Clear Chapter 6 | 21-25 (4★) | 6 |
| Sixth Stratum | 26-30 (4★) | 7 | |
| Seventh Stratum | Clear Chapter 9 | 31-35 (4★) | 8 |
| Eighth Stratum | 36-40 (4★) | 9 | |
| Ninth Stratum | 38-40 (4★) | 9 | |
| Tenth Stratum | 40 (5★) | 9 |
(As of 15th February 2017, Stamina costs have been permanently halved.)
Bonus Experience
Once per day, starting from 7:00 AM and ending 6:59 AM the following day, after clearing a stratum, you will receive multiple Shard or Crystal items, which can be used to level up Heroes outside of battle.
The colour of the Shard or Crystal depends on the day of the week.
| Day | 5th Stratum or lower | 6th Stratum or higher |
|---|---|---|
| Tuesday | Scarlet Shard | Scarlet Shard or Crystal |
| Wednesday | Azure Shard | Azure Shard or Crystal |
| Thursday | Verdant Shard | Verdant Shard or Crystal |
| Friday | Transparent Shard | Transparent Shard or Crystal |
| Saturday/Sunday/Monday | Universal Shard | Universal Shard or Crystal |
Unlocking Potential
Furthermore, each time you clear a stratum, you may receive a Badge item (or multiple), which can help increase a Hero’s rarity.
Likewise, the colour of the Badge depends on the day of the week.
| Day | 5th Stratum or lower | 6th Stratum or higher |
|---|---|---|
| Tuesday | Scarlet Badge | Scarlet Badge or Great Scarlet Badge |
| Wednesday | Azure Badge | Azure Badge or Great Azure Badge |
| Thursday | Verdant Badge | Verdant Badge or Great Verdant Badge |
| Friday | Transparent Badge | Transparent Badge or Great Transparent Badge |
| Saturday/Sunday/Monday | Random Badge | Random Badge or random Great Badge |