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, 1 March 2015
When a fully invested Goju saido is destroyed and the destruction interrupted with feign death, when Saido reenter's play he will perform a Melee 5 as part of his entering play effects, yes?
If that is true, when coming into play, Saido may target a card in the players home, but assuming that Saido was destroyed and subsequently comes back during the battle action phase, can his Melee attack target a card in the enemies army?
If the above is yes, would you still be able to do so if Saido was the last person in the opposing army, and by his destruction and return to home, you no longer have presence at that battlefield, would you still be able to target an enemy card in the previously opposed army?
Goju Saido Assassin • Ninja • Shadowlands Invest : Melee 5 Attack (this cannot be Interrupted) that may target a card in a player's home (if otherwise legal). This Invest cost cannot be reduced. Lose 2 Honor. After Saido enters play, lose 1 Honor.
Feign Death Interrupt: Target your Personality. After the action resolves, if it destroyed him, bring him into play in your home, ignoring costs and Honor Requirement, then bow him, dishonor him, and lose 2 Honor.
Jon Palmer (rules official), 5 March 2015
When a fully invested Goju saido is destroyed and the destruction interrupted with feign death, when Saido reenter's play he will perform a Melee 5 as part of his entering play effects, yes?
If that is true, when coming into play, Saido may target a card in the players home, but assuming that Saido was destroyed and subsequently comes back during the battle action phase, can his Melee attack target a card in the enemies army?
If the above is yes, would you still be able to do so if Saido was the last person in the opposing army, and by his destruction and return to home, you no longer have presence at that battlefield, would you still be able to target an enemy card in the previously opposed army?
Goju Saido Assassin • Ninja • Shadowlands Invest : Melee 5 Attack (this cannot be Interrupted) that may target a card in a player's home (if otherwise legal). This Invest cost cannot be reduced. Lose 2 Honor. After Saido enters play, lose 1 Honor.
Feign Death Interrupt: Target your Personality. After the action resolves, if it destroyed him, bring him into play in your home, ignoring costs and Honor Requirement, then bow him, dishonor him, and lose 2 Honor.
Your reading of the current rules is correct; however, we're removing the section of the CR that defaults all entering play to Recruiting. Since Feign Death does not explicitly Recruit and Recruiting is needed for Invest effects on Personalities to trigger, you will not get the Invest effect again if you bring an Invested Personality back into play via Feign Death.