He was the prince of the human empire 300 years ago. He was scarred during a great battle. He specializes in combat and should be stationed at the center.
In adventures, a Berserker named William accompanies the player, where he struggles to restore the kingdom that was corrupted by his uncle Larry, another Berserker.
The Berserker is a melee hero much like the Behemoth, though that's the only similarity between them.
He focuses much more on offense, while the Behemoth is better suited for tanking. The Berserker has relatively high attack speed and damage compared to the Succubus and Behemoth (not factoring in Shamans). However, he is only limited to one enemy at a time, whereas the Behemoth can attack both enemies at once if they are within range. Along with the high raw damage and attack speed, he also moves significantly faster, though it is balanced out with less health and defense.
The Berserker also has a relatively high evasion rate as his medal provides him the benefits of doing so, alongside his pet. Berserkers will benefit greatly off of a high leveled rune and pet, agility gems and a Sacred Rune that is providing him with an evasion perk. This allows him to make up for his lower health and defense.
The Berserker's unique medal is the Lightning Medal, which gives him extra damage and avoid. For each level added to the medal, he gains an additional point of damage and an additional 1.2% chance to evade incoming attacks.
The Berserker's ability is Battle Heart, where upon reaching 30% of maximum hitpoints, he will be enraged, with all incoming hits missing for 2 seconds. Afterwards, his movement speed and attack damage will be increased drastically for 5 seconds, and can only be used once per battle. The movement speed and attack damage can be increased by upgrading his ability, requiring spar and elements.
This effect compliments the Apostle set's Chain Cut skill, as it activates at the same health threshold and allows him to perform instant attacks against the enemy. Activating the set effect requires at least 3 parts from the set, with the best effect activating with all five pieces.
With a castle/fort level of 45, a Pet Shop may be added into the respective area. When this happens, the Berserker will gain a pet, the Jungle Ape, which will join along the battles that the Berserker is in. The Jungle Ape provides supporting stats for the Berserker, mainly in offense.
You can find an overview about all items here.