"Training" is a feature that allows you to increase a unit's Star Level and raise their stats by using Memory Fragments.
A unit's Star Level starts at 0. You can attempt a Trial every 10 Star Levels.
Completing Trials will further increase their Star Level.
Memory Fragments can be obtained through limited events like the “Training Tower.”
When using Memory Fragments, there is a chance for “Good” or “Excellent” results, which will grant 2x or 10x EXP respectively.
■Max Trials
The number of trials a unit can undergo is based on their rarity.
| Rarity | Max Trials |
|---|---|
| N | 2 Trials; Can Reach Star Level 30 |
| R | 3 Trials; Can Reach Star Level 40 |
| SR | 4 Trials; Can Reach Star Level 50 |
| UR | 5 Trials; Can Reach Star Level 60 |
| LR | 7 Trials; Can Reach Star Level 80 |
■Use All
You can use multiple Memory Fragments at once to increase the Star Level by +1 or to increase it to the next Star Level with a Trial.
If there are not enough Memory Fragments to reach the selected Star Level or to reach the next Star Level, all available Memory Fragments will be used.