The basic fighting technique is simply get in your opponent's face and start beating the tar out of them. However, this strategy does not always work on difficult modes, such as Veteran or Elite.
Common skills used to remedy this are the Hunter skills Eviscerate and Ravage, both creating a damage area in an arc of 120 degrees or greater for Eviscerate
, and a full circle for Ravage. Both will help clear your combat area of mobs, allowing easier escape, or simply a more effective way of dealing damage to more than a singular individual at once. Other tools used are Shadow skills Shadow burst, which allows you to jump through
your opponent, healing you. This jump is one of the longest runs you can make as a Bezerker, and aside from healing yourself, it allows you to get out of that nasty scenario where you have gotten yourself trapped in mobs, five deep. Savage Rush has the same effect, although there is no healing, and the jump distance is much shorter. However, it does deal far more damage.
Aside from these basic and common skills above, passive skills, such as the Hunter skills Blood Hunger, Executioner, Tundra skills Rage Retaliation and Cold Steel Mastery, and Shadow skills Frenzy Mastery, Shred Armor
, and Red Wolf are also extremely helpful dealing damage to your opponents in a short amount of time. The links above under Skills have more details on the exact consequences of each skill
. To be brief, each allows you to deal more damage, faster. With Bezerkers, it is advisable for beginners to focus on dealing the most damage in the shortest amount of time, an idea that favors claw weapons and skills that increase the duration of Frenzy and the rapidity of reaching it, such as Frenzy Mastery and Executioner. More advanced users often create dual-wielding short sword or axe characters. Remember, you never really know if your character build was a success or failure until ~level 50. (Unless, of course, you find you simply can't kill anything at level 49. In which case, I recommend that you start again, or respec your character. Instructions are found here.
And, instead of going through the countless possibilities of how to build your character, you can find builds on the bottom of the page of the Official Torchlight II Armory, found here
. The page includes a skill calculator, which calculates the attributes of the Bezerker's skills at any level, and strength, dexterity, focus, and vitality amount to determine the ultimate outcome of a given setup at any level between one and one hundred.