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, 23 September 2012
Ok so if my opponent uses the unit kill part of his battle action and i ryoshun's it and target a card in another unit that is an attachment is that legal sense the previous target was to destroy a unit with lower gold? Also if that second unit is also lower gold will it destroy the card i targeted or the whole unit? I understand that it says OR so im assuming when i use ryoshun's i get to choose now weather it kills a card without attachments or the unit correct?
Bowing, destruction, and movement from Battle actions Hiromi performs will not be negated or delayed. Battle: Target an enemy card without attachments, or an enemy unit, with a lower total Gold Cost than Hiromi's unit: Hiromi strikes with the power of Thunder. Destroy the target.
Jon Palmer (rules official), 24 September 2012
Ok so if my opponent uses the unit kill part of his battle action and i ryoshun's it and target a card in another unit that is an attachment is that legal sense the previous target was to destroy a unit with lower gold? Also if that second unit is also lower gold will it destroy the card i targeted or the whole unit? I understand that it says OR so im assuming when i use ryoshun's i get to choose now weather it kills a card without attachments or the unit correct?
Bowing, destruction, and movement from Battle actions Hiromi performs will not be negated or delayed. Battle: Target an enemy card without attachments, or an enemy unit, with a lower total Gold Cost than Hiromi's unit: Hiromi strikes with the power of Thunder. Destroy the target.
Please note the trigger on Ryoshun's Guidance: "When another player's action would target one of your cards". Since Hiromi is targeting a unit, he is also targeting its Personality. Then we get to the second part of Ryoshun's: "Choose another of your non-Stronghold cards at the same location. The action targets it instead, if legal". You can choose another card as the target. This is however only targeting that card, no-longer targeting a unit, so it will only destroy that card.