i like how most comments are just about dark arrows and the weapon art , not even the weapon itself

One possible explanation for the unusual stance is that this is the way a longbow was used when riding a horse (bows were held horizontally so you could quickly change aim with an arrow pulled, without worrying about your bow hitting your horse's neck), until the Mongolians invented the much shorter composite bow.

Thanks black bow of Pharis for ruining my favorite games pvp

For approximately 30 dex and above the pharis bow outdamages and out ranges the longbow it also slightly fires a bit faster. So just use this at that point.