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, 27 July 2008
Hello. That's in fact question about elasticity of Rule of Location/Presence exception
Matsu Aoiko XP Battle: Once per battle: Move one of your target Lion Clan Samurai to Aoiko's battlefield.
Attack phase, no units at all at current battlefield, my action opportunity. May I use Aoiko's ability to move _her_ to current battlefield? I am unsure if in this sentence 'Aoiko's battlefield' is used interchangeable with 'current battlefield' or rather 'battlefield with Aoiko already on it'...
PS : Yes, I know, sorry to bother you at all !
A player, 27 July 2008
I am unsure if in this sentence 'Aoiko's battlefield' is used interchangeable with 'current battlefield' or rather 'battlefield with Aoiko already on it'...
In Matsu Aoiko (Experienced)'s second ability, "Aoiko's battlefield" is the battlefield where she is at. It is not interchangeable with 'current battlefield' unless of course if Aoiko is there.
Attack phase, no units at all at current battlefield, my action opportunity. May I use Aoiko's ability to move _her_ to current battlefield?
No. The second part of the Rule of Location says that if a Battle action is on a card in a unit, the unit must be at the current battlefield in order to take that action, with an exception for actions which costs or effects can move the unit to the current battlefield. There are no unit at the current battlefield, which implies that Matsu Aoiko (Experienced) is elsewhere, therefore "Aoiko's battlefield" is not the current battlefield, so this Battle action would not move her to the current battlefield, thus it can not be taken.
The Rule of Location: "This rule has two parts: 1. Any cards in units must be at the current battlefield to be legally targeted by a Battle action. 2. If a Battle action is on a card in a unit (a Personality or attachment in play), the unit must be at the current battlefield in order to take that action. EXCEPTION: A Battle action can target or be taken by a card in a unit at another location if its costs or effects say they can move the unit to the current battlefield. Choices within the action must then be taken, if possible, such that they do move the unit there.