Also not a real rules change, but I've been reading through the FAQ and thought this was really interesting (emphasis mine):
Q003: How do battlefield conditions work in a constructed tournament?
A:
- You may choose to play battlefield condition cards or not, they are optional.
- If you choose to play them, you must make a hand. Your hand must have a number of cards equal
to the number of rounds in the tournament.
- Your hand may contain battlefield condition cards equal to the number of rounds minus one (for
example, in a four-round tourney you can have up to three battlefield condition cards in your
hand.) You are not required to have that many; you can bring one or fewer if you choose. When
bringing fewer than the maximum, you are required to bring "placeholder" cards (either feat or
bystander cards) to fill out your hand.
- Your hand cannot have more than one copy of any battlefield condition card (for example, you
can't have two or more Ordinary Day cards, even when those cards are drawn from different
expansions.)
- Your opponent has no say in if you want to play battlefield condition cards or not. If you bring
them, you can play them.
- After you roll to determine who will be the first player, choose a map and starting areas, but before
you place your figs in the starting area, both players reveal their battlefield condition cards at the
same time (no waiting to see what your opponent plays before you choose a card.) Placeholder
cards, if played, have no effect on the game.
- The card played in a game--whether a battlefield condition or placeholder--is removed from your
hand after the game is over. It cannot be played again in subsequent rounds.