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.
If Aroru's Range 5 attack destroys a courtier, can the controller of courtier play empress address or words have strength?
Also, when will aroru's battle action end?
Words have strength Reaction: After a battle's resolution, or the resolution of another player's Battle action, if the resolution or action destroyed any of your Courtiers or Magistrates: Choose a player, who loses 3 Honor.
If Aroru's Range 5 attack destroys a courtier, can the controller of courtier play empress address or words have strength?
Also, when will aroru's battle action end?
Words have strength Reaction: After a battle's resolution, or the resolution of another player's Battle action, if the resolution or action destroyed any of your Courtiers or Magistrates: Choose a player, who loses 3 Honor.
Abilities and actions: "The trigger “after action resolution” is the same point in time as “after the action ends.” "
So, both The Empress' Address and Words Have Strength can be played in response to Aroru's Ranged Attack action.