- Each costume belongs to one of the following grades: Common, Uncommon, Rare, Heroic, or Legendary.
- The higher the grade, the more powerful Equipped Effects and Owned Effects the costume will have.
- The effects are divided into Equipped Effects that apply when the costume is equipped on the character, and Owned Effects that apply while simply possessing the costume.
- Equipped Effects only apply when the character equipping the costume enters the game.
- Owned Effects will apply regardless of whether the costume is equipped.
It can also include out-of-game effects, such as increasing the maximum Energy, that are not directly related to gameplay.