Let me expand further on that since you got the wrong skill there; I didn't meant that skill you said (30% Defense Buff + 400 HP Regen P/T)
Neither I meant her Sniper Shot which is the only reason she's arguably the best after Sol (yes, you don't actually care even so slightly about the Regen or the Blind for that matter when talking about why Amaterasu is so versatile, it all comes down to that B Frame 20% Attack and Defense debuff since it lets you use a Soul that isn't so plain and dull like D'artagnan or free your EX Slot from Sniper Shot, also keeping in mind that you're aiming to hit -40% debuffs on all your teams I think it's pretty clear)
i meant her Blind skill which has a huge landing rate when Fully LB'd (80%+) and it nullifies normal raid attacks at around 50-60% of the times that plus Mordred's Vicissitudes of Fortune means you're guaranteed to at least get the Blind if you don't get the Dizzy in Outrage and since the whole argument was that with good skill control you can go through an entire expert raid, even if over level 100 without getting an Overdrive to the face
I hope that's a little better to digest
I mean, even though your analogy could come as redundant or ignorant considering that the example you give it's an "One Turn Cut" like Joan's you're pretty much saying that Perun has a better defense buff than Andromeda even though it isn't a Defense buff, Is just a cut like Joan's or Gaia's, there's an R Hime with a Defense Buff as bigger as her's or Andromeda's but...
About this, well duh; It's pretty much obvious?
If you have the best Kamihime of it's Element and you're against a raid that's weak to said Element did you expect something else?
Let's say I have Amon [Unleashed] or New Year's Amaterasu when it drops and I'm fighting Saint Nicholas ehm...
Say I have Amaterasu or Summer Sol and I'm Fighting Lilim Pride ehmm...
Say I have Gaia and I'm fighting Mastema... right?