Shiba Eraki and Interrupt spells (L5R rules board)

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, 2 May 2014

I feel compelled to ask this. It has been discussed in the forum: viewtopic.php?f=58&t=108008 Please may I still ask about the following scenario:

Attacking at a battlefield: I have a shugenja with 3 x Steal The Candle's Flame and 3 x Reverse Fate, and I have Shiba Eraki. My opponent's Nikaru uses a Come One at a Time duel on my shugenja. I use Final Sacrifice to redirect to Eraki. I interrupt with all 6 spells' interrupt actions. Eraki is now 8F/9C. Eraki strikes, killing both Nikaru and Eraki. Is this legal?

Also, could it be used on my action? eg: I duel Nikaru with Eraki using Weakness Exposed. I then interrupt with 6 spells, making Eraki 8F/9C?

A player, 2 May 2014

It works. Sorry for Nikaru.