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, 13 August 2015
Rules Junta, Thank you for your previous clarifications. Here's another one:
We're hip-deep in Battle Segment bloodshed, and a player destroys a personality with a Ranged Attack.
His opponent then plays Escalating Violence [...Interrupt: If the action is another player's and Battle, after the first time it destroys one of your cards, target an enemy Personality. Your Personalities have +1F/+1C while opposing the target (this turn).]
Can the opponent then play Feign Death [Interrupt: Target your Personality. After the action resolves, if it destroyed him, bring him into play in your home, ignoring costs and Honor Requirement, then bow him, dishonor him, and lose 2 Honor.] and keep the +1F/+1C bonus for personalities still present at the battle?
Pushing it even further, could he then play Back to the Front to bring the "destroyed" personality back to the battle, also retaining the +1F/+1C bonus?
"I'm not dead yet. I think I'd like to go for a walk."
Alex Jones (rules official), 1 September 2015
Rules Junta, Thank you for your previous clarifications. Here's another one:
We're hip-deep in Battle Segment bloodshed, and a player destroys a personality with a Ranged Attack.
His opponent then plays Escalating Violence [...Interrupt: If the action is another player's and Battle, after the first time it destroys one of your cards, target an enemy Personality. Your Personalities have +1F/+1C while opposing the target (this turn).]
Can the opponent then play Feign Death [Interrupt: Target your Personality. After the action resolves, if it destroyed him, bring him into play in your home, ignoring costs and Honor Requirement, then bow him, dishonor him, and lose 2 Honor.] and keep the +1F/+1C bonus for personalities still present at the battle?
Pushing it even further, could he then play Back to the Front to bring the "destroyed" personality back to the battle, also retaining the +1F/+1C bonus?
"I'm not dead yet. I think I'd like to go for a walk."
First point to note is that both Escalating Violence and Feign Death, being Interrupts, are played before the action they interrupt resolves - that is, before the Personality is destroyed. However, given that, as of Twenty Festivals, targets are chosen before Interrupts are taken, it makes no difference in the case you describe.
So. If you Interrupt, with Escalating Violence and Feign Death, your opponent's Ranged Attack action targeting your Personality, Escalating Violence's delayed effect is triggered first, by your Personality's destruction: you target an enemy Personality, and the bonuses to your Personalities start to apply. Later, after the action resolves, Feign Death's delayed effects are triggered, and your Personality re-enters play, etc: this has no impact, however, on the bonuses granted by Escalating Violence.
Regarding the second question, the bonus granted by Escalating Violence has a while condition, which means that it is applied whenever the condition is true. That is, for the rest of the turn, whenever your Personalities are facing the target they get the bonus, and when they're not, they don't - and they regain the bonus when they are facing the target again. Your Personality whose destruction triggered Escalating Violence will gain the bonus when he moves to the battlefield with Back to the Front.