- Basic Info
· All stats have a grade - S, A, B, C, D.
· All players excluding Prime players have three D grade skills when first obtained.
· Prime players have an A grade skill in the first slot.

- Changing Skills
· Using a Skill Change Ticket changes all 3 skills owned by the player.
· The A grade skill in the first slot of a Prime player does not change, but it can be changed if you want to.
· Using a Skill Grade Protection Ticket prevents the skill grade from being reduced.

- Skill Grade Effect
· The effect of the lowest-grade skill out of the 3 skills will be applied.

① The effect of the lowest-grade skill out of the skills owned will be applied.
② Using a Skill Grade Protection Ticket prevents the current skill grade from being reduced.