If a player has a card that says instant on it, they can play that card at any point in the game, even if its not their turn
Know exactly what your cards are worth right now
It works best in high-powered EDH tables where it wipes away all manner of fast mana, from Chrome Mox to Mana Crypt (and Treasure) for a minimal investment, though obliterating talismans and such for a higher cost is still solid
Cards were distributed until they ran out, which didn't take very long, as you might imagine
Give yourself 10-15 minutes before round 1 to count your deck, verify against your sheet, and double-check quantities
You also have Egg Mode which is like Evolution Mode but for baby Pokemon, and Travel Mode where you get to travel to new areas