The biggest problem with Season Bonus is that there isn't any official explanation for it. Outside some brief mentions in-game, the most information I can find on it was just a bunch of players in the official Discord asking questions and occasionally getting an evaluated guess of an answer from a fellow player.
Each of the characters receiving these bonuses is involved in Team-Up Abilities. More specifically, each one serves as an anchor or initiator for them.
We're assuming that this isn't just a massive coincidence and the characters mentioned above were chosen for their Team-Ups role. The yellow symbol for Season Bonus is also used to infer to Team-Up Anchors after all.
If these are indeed meant to be tied to Team-Ups, we could also see the debut of new ones and potentially the shelving of others.
Collection
[
|
...
]