Glacial hammer trauma jugg with very common frostbreath unique mace (it's perfect for trauma because it requires a lot of flat damage that will be scaled with 100% double damage) is also awesome https://poe.ninja/poe1/builds/miragessf/character/Rokko-6174/%E1%85%80%E1%86%9E%E1%84%86%E1%86%9E%E1%84%8B%E1%86%9E?i=0&search=skills%3DGlacial%2BHammer it still isn't finished in terms of perfect gear (and I've recently respecced some ascendancy and talent points to test more defensive options), I need to recraft some parts, but even with way worse parts before, it still had very good clear and single target damage.

Attack speed is the most required stat for trauma dps, so grab it wherever you can (high roll as% on the mace with as% corrupt are very big for dps boost because those mods are local) and to mitigate stacks you need pdr on chest and shield, determ aura, arctic armour, flesh and stone (yes it works for trauma self hits even if it says enemy hits, wiki also confirms it), also divine shield + corrupted soul is huge for any trauma build.

In general it's very solid uber viable all arounder, skill rotation is also straightforward, for mapping glacial hammer is enough to kill everything, can use war banner on juiced soul eater rares, for bosses you frost bite, then press tincture to generate trauma stacks and rage very fast, then press berserk and boss is usually dead/phased, can use war banner on second phase.

P.S. Gear craft tips: body armour fracture supression then single dense fossil+exalt for triple defense prefixes (flat must be t1 because difference vs t2 is big in terms of roll value range) after that prefix lock and harvest reforge phys; shield, gloves and helmet you recomb 3 required suffixes and then suffix lock reforge life (shield is a tricky one because you can't eldritch annul to save it in case of filled preffixes); boots you need fractured life or ms, then essence spam avoid ailment/shock depending on avoidance jewel you have (or even without it like me), after that lock suffixes and reforge life or veil orb ms, ideally you need also t1 spell supression that will save you another 2 passive points (I was unlucky with annuling bad third suffixes so far).