I've been looking at some builds and I'm puzzled by something I've seen. There are a lot of builds that have you building both 
and 
.
Both of them have the Unique Passive: Lethality. I thought Unique Passive's don't stack. So why are they building both? Just doesn't make sense to me.
Someone please explain.
+ + 
stacks
+ does not stack
Ty all. That helps a lot.
What Eedat said. There are two kinds of unique passives
Named Unique Passives (Never stacks with anything of the same name, period)
Unnamed Unique Passives (Never stacks with an identical item, but does stack with various items with the same stats)
Unique passives without names stacks but not on the same item.
