Can anyone tell me what item 2 use on the dias in trynton,i have the mook thang n Astral Dominae n the fake,and a diamond,none of which semm 2 work.........

which dais? If you mean the 2-tiered platform in front of a door that says "...item needed..." when you touch it, you need an Idol which can't be found in Trynnton...
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It's in Marten's Bluff. Behind a door you have to open by throwing a switch in another part of MB.