The Fallen is really cool. It gives glass cannon defence (62.5 shadow and normal, compared to 62.5 shadow and 71 normal from Snarby), in addition to a completely useful bonus as well as ok resistances.
The instance of usage I'm talking about is of course with Black Kat Cowl because Black Kat Cowl is silly overpowered and more or less all top-tier players use it. With BKC, one of the following are usually used:
- Vog Cub Coat
- Justifier Jacket/Nameless Poncho
- Snarbolax Coat
- Chaos Cloak
- Ancient Plate Mail
Of all these, I'd go as far as to say that bringing Fallen is just plain better than the other items that provide attack speed increase, as long as you're going with both guns and swords, which most people do.
While ASI Low may not be very notable, it's still there in effect and it will make a difference for both guns and swords. It will also allow you to get more than base Shadow defence, unlike any of the other listed pieces that provide ASI. On top of it, you get some really handy resistances, which the class pieces provide slightly less of.
So what's the deal with it all? Why is Fallen so incredibly neglected, when it clearly can be used with a greater effect than more common pieces?
I know Blueflood used armor of the fallen with a BKC. It makes you look like a gender-confused kat, bit undoubtedly helps.
A more common combo of the fallen armor is the Crown of the Fallen with Snarby Coat, very effective.