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You are die a lot probably need to look at your build and your armor. Best advice (also what I use) that I can give you, is try using sheild but with that you must understand that an effective sheild needs a decent strength attribute to go with it. I use several different builds for different goals but for sunken I like to use sheild and a charged gale to boost the armor. I use precise diamonds in all the armor for higher armor too. Higher strength also gives you more health. I use to just dump all my skill points in to int but as time went on the necessity for more health has came about so you will have to use some of that in your strength and sacrifice some of your intelligence.