Once a tribal blacksmith who forged weapons from the bones of fallen beasts, Jax 'Skull Grinder' Krell turned his crafting skills into combat prowess after his clan was annihilated by mutated predators. He now wields his signature skull-headed maul, vowing to crush every threat to his new pack.

The maul's head is forged from fused mutant skulls reinforced with scavenged titanium, its haft wrapped in electro-laced sinew that enhances swing velocity. Krell's armor incorporates layered bone plates and a trophy rack of shattered enemy helmets that emit low-frequency vibration warnings to nearby foes.

Frontline shock trooper who breaks enemy formations and claims territory through brute force, serving as both weapon and warning of the Predators' physical supremacy. Specializes in destroying fortified positions and crushing armored opponents.