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, 19 March 2013
Corrupt Jade Vein Bow this card: Produce Gold equal to 2 plus the number of Shadowlands Personalities you control without the base Shadowlands keyword. If this pays for a Personality, permanently give him Shadowlands.
The Imperial Palace of Fu Leng You will not bring non-Shadowlands Personalities into play.
CJV (and a few other similar cards) give a Personality Shadowlands without specifying that they do so after he enters play. Does the keyword get applied quickly enough to allow the personality to enter play for The Imperial Palace of Fu Leng?
Jon Palmer (rules official), 19 March 2013
Corrupt Jade Vein Bow this card: Produce Gold equal to 2 plus the number of Shadowlands Personalities you control without the base Shadowlands keyword. If this pays for a Personality, permanently give him Shadowlands.
The Imperial Palace of Fu Leng You will not bring non-Shadowlands Personalities into play.
CJV (and a few other similar cards) give a Personality Shadowlands without specifying that they do so after he enters play. Does the keyword get applied quickly enough to allow the personality to enter play for The Imperial Palace of Fu Leng?
Unfortunately, no. If you follow the procedure for playing Personalities, you'll see that restrictions on entering play are checked prior to costs being paid. You'll need something like Black Finger River.