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.
My opponent plays Scars of War on one of my holdings.
3 turns later I use the holding and therefore 1 honour. Is that loss an effect from Scars of War?
If so, if when someone plays Scars of War can I react with Unimpeachable name? Does that mean I will never lose honour from using that holding?
My opponent plays Scars of War on one of my holdings.
3 turns later I use the holding and therefore 1 honour. Is that loss an effect from Scars of War?
Yes.
Does that mean I will never lose honour from using that holding?
Now is unfortunately when I have to say "no". While Scars of War has a stated duration of "Until the game ends", the reduction of Honor losses from Unimpeachable Name has no stated duration, so by default it only lasts until the end of the turn in which it was played. Scars of War being a Limited, this likely makes it played on your opponent's turn, and given that you're unlikely to be using the targeted Holding on his turn, Unimpeachable Name will probably only reduce one (if you DO happen to use the Holding once on his turn) or more likely none of Scars' Honor losses.