A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
A player, 6 June 2012
Tamori Kazushige: Open: If it is another player's turn, target one of his Personalities: Before this phase ends, straighten him. Before this turn ends, if the Personality did not assign to attack this turn, gain 2 Honor. Goju House Guard: Battle: Put this card on the top or bottom of your Fate deck and target an enemy Personality: Put all cards without attachments in his unit on the bottom of their owner's appropriate deck.
If I target personality X with Kazushige, he assigns to attack me, and my first action that battle is to use Goju House Guard to put personality X on the bottom of his owner's deck, do I gain 2 honor from Kazushige's delayed effect?
Essentially, is "Personality X has assigned to attack this turn" a game state thing or a card tracking thing that is forgotten when personality X goes face down and out of play?
Alex Jones (rules official), 14 June 2012
Tamori Kazushige: Open: If it is another player's turn, target one of his Personalities: Before this phase ends, straighten him. Before this turn ends, if the Personality did not assign to attack this turn, gain 2 Honor. Goju House Guard: Battle: Put this card on the top or bottom of your Fate deck and target an enemy Personality: Put all cards without attachments in his unit on the bottom of their owner's appropriate deck.
If I target personality X with Kazushige, he assigns to attack me, and my first action that battle is to use Goju House Guard to put personality X on the bottom of his owner's deck, do I gain 2 honor from Kazushige's delayed effect?
Essentially, is "Personality X has assigned to attack this turn" a game state thing or a card tracking thing that is forgotten when personality X goes face down and out of play?
"Personality X has assigned to attack this turn" is a part of the game state of Personality X, but it is tracked by the delayed effect created by Tamori Kazushige's action: the delayed effect does not wait until "Before the turn ends" and only then check the game state of Personality X. Instead, his game state is watched until he goes face down and out of play, and the delayed effect 'remembers' what happened up to that point.