I'm gonna add to this because a friend of mine and I realized something while discussing the Yokai class.
What is the exact definition of a Weapon Attack? Are attacks gained from Yokai Circles Weapon Attacks? If not, is it because they are "special Attacks" and if yes, does that mean the Samurai's Limit Break does not work with Hissatsu techniques as those are "special Attacks" too? (Nevermind the latter part, Yokai Circles are special actions, not special attacks, so there is no real connection . A definition will still be appreciated, but I will assume Weapon Attack and Attack are interchangeable until further notice)
This is an innocent-looking conundrum that could make or break the entire system imho.
Addendum: What does the wording of Fighter's "Omnistrike" mean? My understanding is that, since it's a single attack, you pick a template that is present in your Master of Arms set for the attack and then add all Tags into one. Said friend reads it as also adding the damage of each weapon into one damage roll, but that still leaves it open how the "Physical or Magical Attack vs. Physical or Magical Defense" part of an attack should get resolved in case of mixed templates. (Now that I'm more awake, I believe the Limit Break simply means that you can essentially decide which Master of Arms weapon you have equipped before and after each Attack that involved a MoA weapon? Essentially removing the limitation from Variation and the various Multi Cuts/Grandmaster. Nope. You can already switch between MoA weapons for free. Back to Square One with the question)
Also is it intentional that a Level 20 Samurai has a 50% chance of Iai Striking any enemy, including End Bosses, into oblivion? Admittedly I haven't crunched high-level numbers yet, but the possibility of effectively dealing 900 or 1000 true unavoidable damage on the first turn seems rather broken.