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 August 2007
Soul Jar reads: Limited: Bow this Personality: Lose 3 Honor. Target one of your dead Personalities. He enters play, waiving costs, with a +2F/-1C token and permanently has 0 PH. After the next time this game this Personality straightens or leaves play, destroy the target.
When you straighten the personality that has the Soul Jar attached, would the destruction of the targeted personality be a cost of straightening or a delayed effect of the original Soul Jar action?
Thank you
Zen Faulkes (rules official), 4 August 2007
Soul Jar: When you straighten the personality that has the Soul Jar attached, would the destruction of the targeted personality be a cost of straightening or a delayed effect of the original Soul Jar action?
Individual effects do not have costs unless the effect specifically says something is a cost. Entire actions have costs.