Think of cards like Sorin the Mirthless, and Liliana of the Veil
Each of the ten decks contains a random selection of 60 cards from the 302 black-bordered cards released in the Beta Edition run, typically including two rares (there is a very small chance - around 3% - that a rare card will be replaced by a basic land in each deck)
It is no fun either losing to things you can't deal with or losing because your hand is full of dead narrow cards you played so the other bad thing doesn't happen
This is mostly a Commander card, because its more than a little bit banned in most other formats, but when it works, it can skyrocket you to greatness, especially if you pair it with a card like Sol Ring
There are regional Pokemon tournaments, where only the winners would go on to compete in the finals, which were held at a secret location