However deep it is, I don't believe there's no BiS, to be honest. Since we're talking about DPS output here, if let's say an armor with "1% chance of your next critical damage to be doubled" or "extends the duration of blood for blood by 5 seconds" increases your dps over let's say a 5 minute period, then that's that. It's what people will strive to build for.. no matter how complex you'd like to make it seem?