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, 8 July 2007
(Playing EHP) If Tadame is at another battle and the currently resolved battlefield contains a unit that I want to use Tadame's reaction from to pay for an attachment, is that legal in SE.
Also if Tadame is bowed at home and I resolve a battle, can I bring him in paying for his own Unwavering Assault as it is an action that would unbow him.
Chris Fuchs (rules official), 9 July 2007
(Playing EHP) If Tadame is at another battle and the currently resolved battlefield contains a unit that I want to use Tadame's reaction from to pay for an attachment, is that legal in SE.
Also if Tadame is bowed at home and I resolve a battle, can I bring him in paying for his own Unwavering Assault as it is an action that would unbow him.
http://rules.l5r.com/Battles#Combat_Segment
Reactions are not subject to Location or Presence.
http://rules.l5r.com/Abilities_and_acti ... _abilities
Abilities on bowed cards may not be used.