Opt X, where X is the number of times you have boosted this turn. (Look at the top X cards of your deck. You may put them on the top and/or bottom in any order.)
Reveal the top card of your deck. If it's a Mechanologist item card with cost 0, put it into the arena.
Near Mint 1st Edition Normal - $0.40
Lightly Played 1st Edition Normal - $0.30
Moderately Played 1st Edition Normal - $0.20
Heavily Played 1st Edition Normal - $0.20
Damaged 1st Edition Normal - $0.20