Compared to the Mercenary, it gains a whopping +7 attack, +3 defense, and slight increases to attack and defense bonuses against fast units and an increase in defense when in bushes and forests.
Unlike its predecessor, the Mercenary, it has an imbalance in attack and defense points: it has a defense value of 16 and an attack value of 20 (which is the highest among High Middle Ages units- tied with the Crossbowman's attack). An additional attack bonus of 6 makes it very effective against Fast Units, and it also gets a defense bonus of 6/4 in Forests/Bushes (respectively). Like all light units so far, it is best to deploy Berserkers in forests and bushes so that they have a defense boost.
It is recommended to combine them with ranged classes, such as the Crossbowman and Trebuchet, as they have a bonus against Heavy Infantry (which Berserkers are weak against). Players should not use Berserkers against Heavy Infantry as they will most likely be killed quickly.