The number of Brilliant Wishing Stones required depends on the number of exchanges needed for each Piece, as follows.
Number of Exchange | Number of Brilliant Wishing Stone required per Piece |
1 to 25 times | 1 |
26 to 50 times | 2 |
51 to 75 times | 3 |
76 to 100 times | 4 |
101 times or more | 5 |