At the beginning of your upkeep, put a +1/+1 counter on Myr Prototype. Myr Prototype can't attack or block unless you pay {1} for each +1/+1 counter on it.
Near Mint - $0.20
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Spanish - $0.20
Lightly Played Spanish - $0.10
Moderately Played Spanish - $0.10
Heavily Played Spanish - $0.10
Damaged Spanish - $0.10
Foil Prices
Near Mint Foil - $0.50
Lightly Played Foil - $0.40
Moderately Played Foil - $0.40
Heavily Played Foil - $0.30
Damaged Foil - $0.30
Near Mint Foil Spanish - $0.50
Lightly Played Foil Spanish - $0.40
Moderately Played Foil Spanish - $0.40
Heavily Played Foil Spanish - $0.30
Damaged Foil Spanish - $0.30