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, 4 February 2011
My friend and disagreed on how Cavalry for Hire works when a destruction effects targets his unit. I played 1,000 Cuts Technique and bowed my two weapons on my Kensai monk. He reacts with Cavalry for Hire. I say his unit is then destroyed, as Cavalry for Hire's react saves itself but not the personality it's attached to and so it gets discarded once the personality goes down. His argument is that Cavalry for Hire's react targets a card in the unit, and negates targeted cards destruction.
So 2 questions. 1) Does Cavalry for Hires react stop the destruction of the character, or just the destruction of Cavalry for Hire itself. And 2) If Cavalry for Hire does only stop it's own destruction does the card then get discarded after an effect that kills the personality, or unit goes off.
Cavalry for Hire
Reaction: After an action targets a card in this unit: Negate this card's destruction from the action's effects.
Battle: blah blah blah that doesn't matter for this question.
A player, 4 February 2011
1) Does Cavalry for Hires react stop the destruction of the character, or just the destruction of Cavalry for Hire itself[?]
Itself, per References: "references to “this card” [...] refer to the card itself."
2) If Cavalry for Hire does only stop it's own destruction does the card then get discarded after an effect that kills the personality, or unit goes off[?]
Cavalry for Hire is not discarded, but destroyed by the rulebook, per Playing attachments: "When a Personality leaves play, all his attached cards leave play in the same manner as he did. This leaving play is a rulebook effect contingent on the effect that took the Personality out of play, so the attachments are destroyed "for" (as a consequence of) the original effect, but not "by" the original effect."