At the beginning of combat on your turn, put a number of +1/+1 counters equal to Maester Seymour's power on another target creature you control. {3}{G}{G}: Monstrosity X, where X is the number of counters among creatures you control. (If this creature isn't monstrous, put X+1/+1 counters on it and it becomes monstrous.)
Near Mint - $600
Lightly Played - $500
Moderately Played - $500
Heavily Played - $400
Damaged - $300
Near Mint Spanish - $600
Lightly Played Spanish - $500
Moderately Played Spanish - $500
Heavily Played Spanish - $400
Damaged Spanish - $300
Foil Prices
Near Mint Foil - $3.700
Lightly Played Foil - $3.000
Moderately Played Foil - $2.600
Heavily Played Foil - $2.200
Damaged Foil - $1.900
Near Mint Foil Spanish - $3.700
Lightly Played Foil Spanish - $3.000
Moderately Played Foil Spanish - $2.600
Heavily Played Foil Spanish - $2.200
Damaged Foil Spanish - $1.900