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, 3 April 2014
I am playing with the Shadowed Estate of the Scorpion and my opponent has a Deep Harbor in play.
Would I be able to prevent Deep Harbor from reducing the cost of a holding by two? I do know I can't prevent the gold production. It doesn't have a phase attached to the second ability. Can I stop it with the Stronghold?
A player, 4 April 2014
It doesn't have a phase attached to the second ability
That means that it's simply *not* an ability, just a trait, therefore Shadowed Estate won't negate it.