At the beginning of your upkeep, put a +1/+1 counter on each creature you control if you control a creature with power 5 or greater. Then you gain 10 life if you control a creature with power 10 or greater. Then you win the game if you control a creature with power 20 or greater.
NM-Mint - $0.90
Lightly Played - $0.80
Moderately Played - $0.80
Heavily Played - $0.70
Damaged - $0.60
NM-Mint Non English - $0.90
Lightly Played Non English - $0.80
Moderately Played Non English - $0.80
Heavily Played Non English - $0.70
Damaged Non English - $0.60