Hello there, magic_librarian.
Currently, if a person misses his turn, say, 5 times in a row, if you log on after 5 days, you'll be able to place down 5 times the number of armies you would usually put in one turn, to make up for it.
Most people hate this a lot, though; it delays the game a lot because everybody else has to wait a whole day to miss your turn, especially in a sequential game.
This topic is currently up for debate, whether or not to vote to kick the "deadbeat" off and force him/her to surrender, or to automatically kick them once 4 turns have passed, etc.
Personally, I wouldn't try waiting for a few days on purpose. It annoys the heck out of your opponents, and you can't get a card for each round missed.
