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, 8 November 2007
A simple clarification
touch of ice can only be used on it's controllers opponents turn?
touch of ice 2gold 3 focus This Spell cannot have its Gold Cost reduced. Water Open: If it is not your turn, bow this Shugenja: Another target player may choose to bow 2 of his Personalities. If he does not bow 2 Personalities, gain 3 Honor.
"if it is not your turn," is that a restriction on when you can play the action OR is it a restriction on the cost of "bow this shugenja:"?
"Water Open: If it is not your turn, bow this Shugenja: "
Martin Lund (rules official), 9 November 2007
A simple clarification
touch of ice can only be used on it's controllers opponents turn?
touch of ice 2gold 3 focus This Spell cannot have its Gold Cost reduced. Water Open: If it is not your turn, bow this Shugenja: Another target player may choose to bow 2 of his Personalities. If he does not bow 2 Personalities, gain 3 Honor.
"if it is not your turn," is that a restriction on when you can play the action OR is it a restriction on the cost of "bow this shugenja:"?
"Water Open: If it is not your turn, bow this Shugenja: "
I've answered a similar inquiry here.
The short answer is that it is a Restriction, not a Conditional Cost. You can't use it on your own turn.