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, 5 March 2013
Question 1: It has been stated that if an action causes a personality a Chi penalty (through tokens or not) and that person dies from having 0C, then the death is caused by the action and not by the rulebook chi-death affect. In the case of Cultist Infiltrator, would a chi-death caused by the -1C tokens it creates each Straighten Phase be considered a destruction of the personality by the card trait itself or by the limited action that attached the card? It would seems that it would be the trait that caused the destruction, but I'm just not sure.
Cultist Infiltrator This card will not be transferred. After each Straighten Phase: Give this Personality a -1C token. Limited: If this card is in your hand, target a Personality you do not control: Attach this card to him, paying all costs.
Question 2: If a personality is destroyed (not the "unit", strictly the personality) by an actions effects and they have an attached follower, is the follower considered destroyed by the actions effects or is it the rulebook that destroyed them? This is in reference to the wording on The Tachikaze.
The Tachikaze After an action resolves whose effects destroyed your Follower with a Gold Cost of 1 or more: You may put it face-up under this card. Battle/Limited: Any number of times per turn, target your Personality: Attach a Follower from under this card to him, paying all costs.
Jon Palmer (rules official), 5 March 2013
Question 1: It has been stated that if an action causes a personality a Chi penalty (through tokens or not) and that person dies from having 0C, then the death is caused by the action and not by the rulebook chi-death affect. In the case of Cultist Infiltrator, would a chi-death caused by the -1C tokens it creates each Straighten Phase be considered a destruction of the personality by the card trait itself or by the limited action that attached the card? It would seems that it would be the trait that caused the destruction, but I'm just not sure.
Question 2: If a personality is destroyed (not the "unit", strictly the personality) by an actions effects and they have an attached follower, is the follower considered destroyed by the actions effects or is it the rulebook that destroyed them? This is in reference to the wording on The Tachikaze.
In this case the answer is that it's the trait on Cultist Infiltrator that ends up killing the Personality, not the action of attaching it. This makes your second question not directly pertinent here, although as a general rule, directly killing the Personality will not allow you to attach the follower to the Tachikaze as the follower is destroyed by the rulebook effect of what happens to attachments when their Personality leaves play.