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.
If I bring Fu Leng into play with The Jagged Maw "Open: Bow this Stronghold, which may remain bowed: Target a dead Personality in your discard pile. Bring him into play, ignoring costs. The next time this game your Stronghold is unbowed, remove him from the game."
Do I have to meet Fu Lengs requirement of two destroyed personalities/two personalities gaining the shadowlands trait in order to bring him in?
If I bring Fu Leng into play with The Jagged Maw "Open: Bow this Stronghold, which may remain bowed: Target a dead Personality in your discard pile. Bring him into play, ignoring costs. The next time this game your Stronghold is unbowed, remove him from the game."
Do I have to meet Fu Lengs requirement of two destroyed personalities/two personalities gaining the shadowlands trait in order to bring him in?
Yes. There is no constraint which says the restriction only applies during the Dynasty Phase.