Obscenitor
Dalayan Elder
Necro class bracer is also almost instantly replaced by other bracers with the same proc. Perhaps you should feel happy about having a class bracer with (for the time being) some longevity even if you have to take it out from time to time.
I am not sure which bracers you are referring to that are better, but in my eyes, MC8, +0.6% damage to DoTs, and a deflux proc is far better than anything a necro can get until Gan Bracer / Taeshlin Bracer. With that being said, you have 2 wrist slots meaning a level headed necro wouldn't replace it until they get a Taeshlin Bracer.