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, 7 January 2012
There was some discussion of this in the previews thread and Mr Reese gave a fairly definitive response, but I just wanted to get clarification from the Rules team.
I declare an attack with a Naval Personality, Moshi A, and my opponent defends with a non-Naval personality, Kakita B.
I declare a Naval Invasion and use the Battle action on Suitengu's Torch targeting Kakita B.
My opponent reacts with Entrenched Position to negate the send home effect.
If I now use the Reaction on Suitengu's Torch, does the send home work? Or is it too late? Would I have to use the strongholds reaction before he plays Entrenched Position?
Suitengu's Torch Thunder Reaction: After you announce a Thunder Battle action: Its effects will n ot be negated or delayed. Battle: Choose your performing unbowed Personality and target an enemy Personality: Move him home.
Entrenched Position Reaction: After the Attacker announces a Battle action before the Defender's first normal opportunity to act or pass: Negate its effects. Battle: Target an enemy card without attachments: Bow it.
Brook Cunningham (rules official), 7 January 2012
There was some discussion of this in the previews thread and Mr Reese gave a fairly definitive response, but I just wanted to get clarification from the Rules team.
I declare an attack with a Naval Personality, Moshi A, and my opponent defends with a non-Naval personality, Kakita B.
I declare a Naval Invasion and use the Battle action on Suitengu's Torch targeting Kakita B.
My opponent reacts with Entrenched Position to negate the send home effect.
If I now use the Reaction on Suitengu's Torch, does the send home work? Or is it too late? Would I have to use the strongholds reaction before he plays Entrenched Position?
Suitengu's Torch Thunder Reaction: After you announce a Thunder Battle action: Its effects will n ot be negated or delayed. Battle: Choose your performing unbowed Personality and target an enemy Personality: Move him home.
Entrenched Position Reaction: After the Attacker announces a Battle action before the Defender's first normal opportunity to act or pass: Negate its effects. Battle: Target an enemy card without attachments: Bow it.
The sequence of play you described is legal, and it would indeed result in send home effect working.
Entrenched Position and Suitengu's Torch's Reactions have the same timing, so you may take the latter after the former. Then, when it comes time to resolve the effects of the Stronghold's Battle action, ST's Reaction's effect "trumps" EP's Reaction's effect.