The choice comes down to whether the player wants a more offensive or defensive Metamorph. Due to this, the Humans' bonuses to Critical Chance and Critical Hit can be very attractive, as can the Dwarves' large bonus to Vitality and Dodging. Metamorphs tend to be close and medium-range fighters that can adapt between the two. Knowing what a class' role on the battlefield is helps inform which race is ideal for the build.