So I've been playing Necroblight throughout mythics as I haven't gotten a vial yet and the other DK has told me that it's not worth playing without the trinket. Is that true? Because I feel like a good BoS on a short fight can outdamage NP easily. Thanks
BoS can be played with any trinkets, just the extra multistrike from Vial will produce more damage per breath cast plus more necrosis from Scourge Strikes etc.