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.
The Rule of Location seems to replace the Rule of Relevance, and I believe all parts of it are clear to me.
(is it) legal in SE to take actions that Create cards in battle if one controls no units there(?)
(EDIT: Since it is a distinct change from Lotus Edition rules, it may help to alleviate confusion by us older players to make mention of it in the list of rules changes)
(Is it) legal in SE to take actions that Create cards in battle if one controls no units there(?)
No.