Multiple other people proof read the stuff before it goes to the print facility
Players may only include cards from the color identity of their main card
An effective manabase can't contain only taplands, but there's always room for a few, and the utility on Bojuka Bog makes it well worth being one of them
You can also team up to kill an attacker with a bigger butt by multiple blocking
It's theoretically possible that, if you were to weigh literally thousands of packs to choose your heavy favorites, and bought hundreds of them, you might get a slightly higher pull rate of rare cards than if you bought the same number of random packs - but I don't recommend it, for two main reasons: Most game stores don't permit you to weigh individual booster packs before buying them - mostly because it takes a long time and holds up the line
A Pokmon pack opening simulato r provides a great alternative, allowing fans to enjoy the excitement of waiting, discovering, and opening packs at their own pace