Upon signing up, you will be sent a PM containing 6 decks. Pick 3, save them, and send a reply showing which you picked.
THERE IS NO GOING BACK once you've picked your decks, as other people will be choosing from what you don't pick.
Sorry, what?
Let's say Abed is given decks A, B, C, D, E, and F. Brad is given decks G, H, I, J, K, and L. Abed picks decks A, B, and C; Brad picks decks G, H, and I. Then, let's say Chad signs up. Will he potentially be forced to select from decks D, E, F, J, K, and L? Because this would be completely ridiculous.
I already do not like that this event is not fair to every player, as some of the decks will inevitably be more powerful than others. But disadvantages given based on luck are not nearly as insufferable as disadvantages given based on the fact that you signed up late.