The nature of CCGs means that the cards in the packs are entirely random across the set rarity of each pack, which for each Lorcana booster pack is 6 common cards, 3 uncommon cards, 2 rare, super rare, or legendary cards, and 1 foil card (random rarity level)
(2021-07-23) You exile the cards face up
These are small folks tales, preserved simply by their retelling through the oral tradition until they were eventually written down and codified then surviving through parallel written versions for many more years, to finally be adapted into Magic: The Gathering
It feels like the designers sat down around a whiteboard and brainstormed every possible interpretation of speed as applied to Magic gameplay, and then tried to make a set which included all of them at once
You can also use it to protect your creatures from removal or even blink opponents' creatures to prevent them from attacking or remove their counters
The key is balancing the number of lands that enter tapped with those that enter untapped
