I have a warrior I occasionally play on, right around your level. At 155 dex unbuffed I found it difficult to rely on those old world, lowbie proccing weapons. I tried out a poison wind censor and found it much easier to get and keep agro with.
If you are low on money though you should just get another obsidian shard. That proc seems to generate a lot more agro than the goblin skullcrusher. You should be fine once you can start landing ykesha procs.
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Jorg Shaman
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