Sorry guys (xwarren, et. al), I was not logged in to search for the IM bug.
http://www.nwnprc.com/forum/viewthread.php?thread_id=648&highlight=iaijutsu&pid=3316-post_3316It turns out that the Iaijutsu Attack is just a WotC GAG (funny and vomit) because . . . IT ONLY WORKS V. FLATFOOTED OR IMMOBILIZED OPPONENTS! Ha Ha Ha – BARF! Thanks for the laughs & chunks, WotC!
I thought they made a serious class there for a minute –
what was I thinking?! Lots of honor attacking helpless foes, glad WotC made IM’s have lawful alignment!
There is a way to manage the failed WoTC mechanics in the build. If you put Unseen Wanderer (invisibility toggle), the primary weapon, Iaijutsu Attack (IA) in successive quickslots, you can mitigate the aggro. However, it is very clumsy and makes the build too frustrating to play through the failed IA mechanic.
1) Check to see if you are invisible (free sneak attacks) 1A) If not, click Unseen Wanderer 1B) If so, go to step 2.
2) Make sure you are UNARMED (hit Weapon toggle)
3) Hit the Iaijutsu Attack q-slot and click on your opp (wait a long time to resolve)
4) (after attack resolution) Toggle the weapon to unarm
5) Toggle Unseen Wanderer
6) Hit the Iaijutsu Attack q-slot ….
The base build is still typical, Epic Spells, Perf TWF dual wielding + EDM, EDS, but the expected massive damage mechanic is nothing but a mirage.