As soon as it is not overly flashy, it's dependable and scales well all the way to endPOE content. Even better, it is a dirt cheap build that just about anyone can master. That said, the Path of Exile forums are filled with poe rmt heaps of variants you can follow, and all of them are pretty good.

I chose WorstSmitesEU's guide since it is thorough and takes time to explain the basics and has a good base that you can always adjust to fit other Duelist-style Sunder assembles. For example, with the 3.2 patch, a great deal of Path of Exile players are saying that Champion is now the ascendancy class of choice instead of Gladiator--however, like everything in Path of Exile, it is up for debate.

With your main hand you hit the floor, causing a wave of broken ground to heartbeat out and strike nearby enemies who, in turn, create their very own mini-shockwaves that cope added damage. The gist here is to get close and Sunder away until all is dead. Yup, it's that easy. Defensively, the construct depends on abilities including Fortify to mitigate incoming damage--again, this is Path of Exile in its most buy poe currency.

The sole downside to  assembles is that their efficacy in endPOE game maps starts to drop off significantly if you don't invest a lot of money into powerful uniques. That is a team starter build from the purest sense, as most Path of Exile players will immediately abandon this personality once they have farmed enough money to pay for a more technical build. Nonetheless, if you're starting out or actually fighting to pick a construct, you may never go wrong with Sunder.