You can reset the Costume's ability by using the Hero's Soul Stone.
① You need a Hero Soul Stone to reset the Costume's ability.
② You can check the list of the Costume's ability that can applied when you reset it.
③ Resets ability.
④ There are four ability grades, from Normal to Legend.
※ The guide was produced in a separate test environment.
So, It may change depending on the update and development situation.
Thank you for your love and interest in the Devil Book~
Devil Book Team