Characters in Trickcal have different personalities (elements in other games) that provide team bonuses when you deploy multiple units with the same personality.
You can get multiple bonuses if you run for example 4 units and 2 of a different personality, but the bonuses are way higher if you focus just on one personality.
All personalities provide the same bonus scaling:
Characters
HP and Damage Bonus
2
+6%
4
+28%
6
+66%
7
+91%
8
+120%
9
+153%
Race Bonuses
Each character belongs to a specific race, and deploying multiple characters of the same race provides unique bonuses.
Unlike personality bonuses, each race has different effects and scaling.