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 March 2013
viewtopic.php?p=1344054#p1344054
Yoritomo Tansen: Battle: Ranged 3 Attack or give the current battlefield's province -3 strength.
If I announce Tansen's battle action as a Koshin Keep effect additional action, am I required to choose 'ranged 3 attack' or am I able to choose the -3 province strength effect? Is an action with an optional or conditional ranged attack effect always a ranged attack action?
Alex Jones (rules official), 7 March 2013
viewtopic.php?p=1344054#p1344054
Yoritomo Tansen: Battle: Ranged 3 Attack or give the current battlefield's province -3 strength.
If I announce Tansen's battle action as a Koshin Keep effect additional action, am I required to choose 'ranged 3 attack' or am I able to choose the -3 province strength effect? Is an action with an optional or conditional ranged attack effect always a ranged attack action?
The additional action you take must be a Ranged Attack action; that is, it must create a Ranged Attack as one of its effects.
If there are choices in the action which determine whether the action creates a Ranged Attack or not, you must make that choice so that it does; otherwise it is not a Ranged Attack action and doesn't meet the conditions of taking it.