User blog comment:B214/Talk About What You Want! 3/@comment-99.101.204.248-20141127062737/@comment-24468758-20141127141529

The values of Issei's mutation pieces:

bishop (3 pawns)

knight (3 pawns)

rook (5 pawns)

queen (9 pawns)

Even with this HIS worth is still 8 pawns.