The biggest problem with this method is that it can be inconsistent and you might be a little hard-pressed to find a store or seller who is willing to let you weigh a bunch of cards to find cards in front of them
If youre not building some crazy, game-ending combo with Log Flume, I imagine you could easily Rule 0 this to add to your Attraction deck
Think of a commander like Feather, the Redeemed, who turns one-cent combat tricks into a powerhouse of repeatable card advantage
This is perhaps Magic's best white enchantment
While you'll find plenty of listings for cards up to NM condition climbing into the $500+ range, there are unfortunately only two recent sales, with an LP card setting the standing market price, followed by a damaged copy that still sold for $180
In essence, you can not only steal your opponents best creature, but duplicate it at the same time