At the beginning of your upkeep, put a +1/+1 counter on Descendant of Masumaro for each card in your hand, then remove a +1/+1 counter from Descendant of Masumaro for each card in target opponent's hand.
Near Mint - $100
Lightly Played - $100
Moderately Played - $100
Heavily Played - $100
Damaged - $100
Near Mint Spanish - $100
Lightly Played Spanish - $100
Moderately Played Spanish - $100
Heavily Played Spanish - $100
Damaged Spanish - $100
Foil Prices
Near Mint Foil - $400
Lightly Played Foil - $300
Moderately Played Foil - $300
Heavily Played Foil - $200
Damaged Foil - $200
Near Mint Foil Spanish - $400
Lightly Played Foil Spanish - $300
Moderately Played Foil Spanish - $300
Heavily Played Foil Spanish - $200
Damaged Foil Spanish - $200