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.)
NM-Mint - $1.30
Lightly Played - $1.20
Moderately Played - $1.20
Heavily Played - $1.00
Damaged - $0.90
NM-Mint Non English - $1.30
Lightly Played Non English - $1.20
Moderately Played Non English - $1.20
Heavily Played Non English - $1.00
Damaged Non English - $0.90
Foil Prices
NM-Mint Foil - $4.60
Lightly Played Foil - $4.40
Moderately Played Foil - $4.20
Heavily Played Foil - $3.70
Damaged Foil - $3.00
NM-Mint Foil Non English - $4.60
Lightly Played Foil Non English - $4.40
Moderately Played Foil Non English - $4.20
Heavily Played Foil Non English - $3.70
Damaged Foil Non English - $3.00