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, 11 October 2007
viewtopic.php?f=59&t=61623 Under that topic you say that adeiko cannot react to the destruction of one of your personalities as a cost
viewtopic.php?f=59&t=62479 Here you say that adeiko can react to destroying your personality as a cost to Ring of Fire
Which one is it?
Zen Faulkes (rules official), 11 October 2007
viewtopic.php?f=59&t=61623 Under that topic you say that adeiko cannot react to the destruction of one of your personalities as a cost
viewtopic.php?f=59&t=62479 Here you say that adeiko can react to destroying your personality as a cost to Ring of Fire
Which one is it?
I'll check with the Rules Junta.
Zen Faulkes (rules official), 12 October 2007
First ruling has precedence. Adeiko cannot react to destructions incurred as costs.