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.
Bayushi Paneki Scorpion Clan • Clan Champion • Samurai • Tactician • Hero • Experienced 4 • Unique • Loyal After another player's action resolves that targeted one or more Personalities at Paneki's location: The player loses 1 Honor. Battle: Target a Personality; if he is a Courtier, he may be at any location. Destroy him if he is Dishonorable. Dishonor him.
What if opponent's unit moves home from Paneki location, does Paneki's trait trigger?
Bayushi Paneki...
After another player's action resolves that targeted one or more Personalities at Paneki's location: The player loses 1 Honor.
What if opponent's unit moves home from Paneki location, does Paneki's trait trigger?
EDIT:
Yes.
When the card was targeted, it was at Paneki's location. After the action resolves, Paneki's trait triggers by knowing that the action targeted the card and where the card was when the targeting occurred.