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, 11 March 2009
scene:Hida Sozen xp2 attacks a province with sorrow's path attached. can sorrow's path destroy Hida Sozen xp2? (does sorrow's path's text make it count as an action?)
Hida Sozen xp2 Crab Clan • Samurai • Hero • Enlightened • Experienced 2 • Unique Other players' actions cannot destroy Sozen. Heroic Battle: If there are any units in the enemy army: Move Sozen to the current battlefield.
Sorrow's path Singular Before a battle at this province resolves: The Attacker targets one unit, or three cards, in the attacking army. Destroy the targets.
Dan Jacobson (rules official), 11 March 2009
scene:Hida Sozen xp2 attacks a province with sorrow's path attached. can sorrow's path destroy Hida Sozen xp2? (does sorrow's path's text make it count as an action?)
Hida Sozen xp2 Crab Clan • Samurai • Hero • Enlightened • Experienced 2 • Unique Other players' actions cannot destroy Sozen. Heroic Battle: If there are any units in the enemy army: Move Sozen to the current battlefield.
Sorrow's path Singular Before a battle at this province resolves: The Attacker targets one unit, or three cards, in the attacking army. Destroy the targets.
Sorrow's Path is an effect of a trait, not an action. Hida Sozen xp/xp2 still dies.