Ok, I've been playing with this for the last few games and I'm smelling ultimate pain cooking which I am not certain should be legal
The recipe is this. UB + Stuff that gives attack speed (Inner Beast basically) + the Mage Slayer sword which is the cheapest artifact one can buy, and it becomes a very very nasty killing machine. Add to it the Wyrmskin Armbands for the extra damage and slowdown and the pain is immense.
I am talking to the tune of felling a tank god within 10 seconds immense
Basically what happens is this, by the time you get the mage slayer, you have around level 3 on inner beast and extra attributes. This means that your attack is boosted by 41% all the time. That is a bit by itself, but the nastiest part is when you add the mage slayer's stunning which will happen fairly often with all these attacks you'll be dishing out and your opponent will not get a move. This becomes even nastier when combined with the Wyrmskin armbands which because of your flurry of attacks will do their special 100 damage very very often and they won't be able to escape either.
Usually by the time I get the Mage Slayer, I've put everything in offense and by then I am simply zipping around and slaying DGs before they can even mount a defense.
Check it out and let me know if it is indeed a bit broken or if it's just me.