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, 27 June 2008
Checking in to confirm a ruling I heard through the grapevine. Cards in question are copied / pasted below. Scenerio is: defender has all Crane ppl in a battle with a Scorpion personality at home. Question is: can the attacker legally play either card targetting a Crane person at the battlefield along with the Scorp at home?
Dissension Cost: 0 Focus: 2 Unique. Battle: Target two or more enemy Personalities, each with a Clan alignment none of the others has. Destroy one of them. Bow the others. Battle: Draw a card.
Unwanted Mediation Cost: 0 Focus: 3 Battle/Open: Bow 2 or more target Personalities with different Clan alignments controlled by the same player. You may pay Gold equal to one of the targets' Gold Cost, as a cost, to destroy him, if he is Unique. Battle: Destroy a Terrain
Doruk Özaydın (rules official), 27 June 2008
Checking in to confirm a ruling I heard through the grapevine. Cards in question are copied / pasted below. Scenerio is: defender has all Crane ppl in a battle with a Scorpion personality at home. Question is: can the attacker legally play either card targetting a Crane person at the battlefield along with the Scorp at home?
Dissension Cost: 0 Focus: 2 Unique. Battle: Target two or more enemy Personalities, each with a Clan alignment none of the others has. Destroy one of them. Bow the others. Battle: Draw a card.
Unwanted Mediation Cost: 0 Focus: 3 Battle/Open: Bow 2 or more target Personalities with different Clan alignments controlled by the same player. You may pay Gold equal to one of the targets' Gold Cost, as a cost, to destroy him, if he is Unique. Battle: Destroy a Terrain
No, both personalities must be at the current battle per the first rule of the Rule of Location: "Any cards in units must be at the current battlefield to be legally targeted by a Battle action."