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, 7 April 2010
In reference to viewtopic.php?f=59&t=82833
Does this mean that Counterattack, Retribution, The Legions Charge, Will of the Emperor and other such Strategies (seemingly reacting in no Phase) cannot be played from discard piles by a Warrens of the One Tribe player?
Warrens of the One Tribe You begin the game with three Provinces. Once per phase, you may play a Fate card in any discard pile as if it were in your hand. Fate cards you have played are removed from the game if they are ever in a discard pile. Limited: Target and bow a Ratling Personality you control: Lose 1 Honor. Discard the top card of each Fate deck.
Counterattack Reaction: Play this card after the last Resolution Segment for an opponent's Attack Phase in which you were the Defender. Create an Attack phase in which you are the Attacker and that player is the Defender.
Retribution Reaction: After the end of an Attack Phase in which you were the Defender: Create an additional Attack Phase of your own in which you must choose the previous phase's Attacker as the Defender. Neither player may invite allies and you may only assign one unit. Give the Personality and each Follower in that unit +1F after it assigns.
The Legions Charge Reaction: After a phase ends during which two or more Personalities you controlled were destroyed by actions taken by one other player: If it was an Attack Phase, create a 4F/4C Cavalry Samurai Personality with 4 Personal Honor. If it was not an Attack Phase, create two such cards.
Will of the Emperor Ninja Reaction: Immediately before the beginning of a player's action phase, lose 2 honor. That player must declare an attack this turn and assign at least one unit to attack, if able.
Alex Jones (rules official), 7 April 2010
In reference to viewtopic.php?f=59&t=82833
Does this mean that Counterattack, Retribution, The Legions Charge, Will of the Emperor and other such Strategies (seemingly reacting in no Phase) cannot be played from discard piles by a Warrens of the One Tribe player?
Warrens of the One Tribe You begin the game with three Provinces. Once per phase, you may play a Fate card in any discard pile as if it were in your hand. Fate cards you have played are removed from the game if they are ever in a discard pile. Limited: Target and bow a Ratling Personality you control: Lose 1 Honor. Discard the top card of each Fate deck.
Counterattack Reaction: Play this card after the last Resolution Segment for an opponent's Attack Phase in which you were the Defender. Create an Attack phase in which you are the Attacker and that player is the Defender.
Retribution Reaction: After the end of an Attack Phase in which you were the Defender: Create an additional Attack Phase of your own in which you must choose the previous phase's Attacker as the Defender. Neither player may invite allies and you may only assign one unit. Give the Personality and each Follower in that unit +1F after it assigns.
The Legions Charge Reaction: After a phase ends during which two or more Personalities you controlled were destroyed by actions taken by one other player: If it was an Attack Phase, create a 4F/4C Cavalry Samurai Personality with 4 Personal Honor. If it was not an Attack Phase, create two such cards.
Will of the Emperor Ninja Reaction: Immediately before the beginning of a player's action phase, lose 2 honor. That player must declare an attack this turn and assign at least one unit to attack, if able.
Warrens of the One Tribe's trait can trigger "Once per Phase." If you're not in a Phase, the trait cannot trigger.