Just a standard quality pyro, but with an Abyss Greatsword. The Abyss GS requires FAI and INT, but does not gain any AR from leveling them. Therefore, you don't lose any AR from not having the "required" INT and FAI.
The result of this is that you have a 566 AR weapon that has the interesting property of bouncing off enemies. This means that you can't combo with a 2H WD R1 > R1, as you have a second or so in the bouncing animation before you can do anything.
Is it viable for top-tier PvP? Most certainly not.
Can it kill randoms? Yep.
Nothing is better than killing people with a sword that you don't even have the stats for.