Open a sealed Magic booster pack, reveal the cards, and put one of those cards into your hand. (Remove that card from your deck before beginning a new game.)
Make your judgment wisely: The right pack will let you defeat your nemesis, but a poor choice can only end in torment. And Homelands.
Near Mint - $35.30
Near Mint Non-English - $35.30
Lightly Played - $31.80
Lightly Played Non-English - $31.80
Played - $24.70
Played Non-English - $24.70
Heavily Played - $21.20
Heavily Played Non-English - $21.20
Damaged - $17.70
Damaged Non-English - $17.70