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, 2 May 2009
Mutual Hatred
Dark Virtue Battle: Target your unbowed Samurai: Target an enemy Personality. Before this battle's resolution, destroy both targets if they are opposing each other.
If I play more than 1 Mutual Hatred on one of my personalities targeting different enemy personalities, what happens before battle resolution?
A) They all resolve at the same time, i.e. my guy is destroyed and all enemy personalities targeted are destroyed as well. B) They resolve one after the other, i.e. my personality is destroyed, so is the first enmy one I targeted, then the other Mutual Hatred have no effect, because they are not "opposing each other" anymore.
Zen Faulkes (rules official), 2 May 2009
Mutual Hatred
Dark Virtue Battle: Target your unbowed Samurai: Target an enemy Personality. Before this battle's resolution, destroy both targets if they are opposing each other.
If I play more than 1 Mutual Hatred on one of my personalities targeting different enemy personalities, what happens before battle resolution?
A) They all resolve at the same time, i.e. my guy is destroyed and all enemy personalities targeted are destroyed as well. B) They resolve one after the other, i.e. my personality is destroyed, so is the first enmy one I targeted, then the other Mutual Hatred have no effect, because they are not "opposing each other" anymore.
http://rules.l5r.com/Timing#Resolving_timing_conflicts: "If different sources each give multiple delayed or indefinite conditional effects to the same trigger, the active player decides which source's effects apply first, but multiple such effects from the same source all happen before such effects from the next source happen.
"Example: If two delayed effects on the same personality say "After he assigns, dishonor him, and his controller loses 2 Honor," the effects apply as follows: dishonor him, lose 2 Honor, dishonor him again, lose 2 Honor."
Each case of Mutual Hatred is applied sequentially. When the second tries to destroy a second enemy personality, the enemy Personality is not opposing your Samurai, so is not destroyed.