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.
This question came up and my search of the comprehensive rules seemed to indicate it would not gain the bonus but does Moto Daiken have his +1F while in the discard pile if there is a dead personality there (including himself) my opponent wanted clarification about this.
Az
Continuous traits A trait without a trigger on a card, such as “Your Samurai each have +1F,” is a continuous effect that is “always on” while the card is in play and while all conditions of the trait are met. While their card is out of play, continuous traits affect the card they are on, and only that card, unless the trait states otherwise.
Underlined the relevant part for emphasis.