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, 21 December 2014
Does Rae Sensei allow Servitors of stone to straighten a card in a unit from home?
Does it have to target a samurai in the effect such as" target your samurai" in the effect for Rae Sensei to allow it to be a home action.
Or as long as it can "target" something as long as its a samurai it can be done from from home.
Alex Jones (rules official), 26 December 2014
Does Rae Sensei allow Servitors of stone to straighten a card in a unit from home?
Does it have to target a samurai in the effect such as" target your samurai" in the effect for Rae Sensei to allow it to be a home action.
Or as long as it can "target" something as long as its a samurai it can be done from from home.
Rae Sensei allow Servitors of Stone to straighten a Samurai at the battlefield from home.
The Spell is not required to text that limits it to only targeting your Samurai: the requirement that it target your Samurai comes from Rae Sensei.