Berzerker arrives to Newerth from the frozen tundras of the north. He's a melee strength hero with a skillset aimed at slaughtering enemies and creating havok. An arsenal of heavy physical-based abilities helps him tear through the weaker opponents on the field.
Great items to start with are Chalice and Steamboots. Ghost Marchers may be picked up instead, if the mobility is needed, but since Mark For Death grants unit walking, it may not wise in every situation. Helm of the Black Legion is a great pickup for early game item boosts, as it grants heavy defensive abilities, and increases Berzerker's maximum health, which enables him to deal much more damage with Carnage. Insanitarius should be a core item as well, as it synergizes with all of his abilities perfectly. Shieldbreaker does provide a huge damage boost, as Berzerker's abilities are physical, however, his own damage and health is increased more with an Icebrand instead, which also allows him to chase down enemies much easier. End-game items should revolve around high damage output while still wielding defensive bonuses, such as Daemonic Breastplate and Behemoth's Heart.