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.
I attach Blade of Penance to Magical Samurai. I then move Blade of Penance to Ninja Dueler. Who needs to win a duel to trigger the extra 4 honor gain from Blade of Penance. The personality it is currently attached to, or the personality who attached it originally?
Blade of Penance Weapon. Shamesword. Dishonor this Personality when Blade of Penance enters play. Gain 4 Honor each time this Personality wins a duel while he has no Followers attached.
Paul Ashman
I attach Blade of Penance to Magical Samurai. I then move Blade of Penance to Ninja Dueler. Who needs to win a duel to trigger the extra 4 honor gain from Blade of Penance. The personality it is currently attached to, or the personality who attached it originally?
The Personality who has it currently.
Blade of Penance Weapon. Shamesword. Dishonor this Personality when Blade of Penance enters play. Gain 4 Honor each time this Personality wins a duel while he has no Followers attached.
Blade of Penance's two traits are essentially triggered traits, written before the convention of having a colon within them was adopted.
But, even if you read them by the strict letter of the current rules, that would make them continuous traits that produce indefinite conditional effects. In that case, the rules for what "this" refers to still wouldn't have the Blade look back to its original owner, because the indefinite effect is new and would look at the Blade's current owner.