Grimlock

A Grimlock is a muscular humanoid with gray skin. It is blind, but its exceptional senses of smell and hearing allow it to notice foes nearby. As a result, it usually shuns ranged weapons and rushes to attack, brandishing stone battleaxes.

A grimlock can sense all foes within 40 feet as a sighted creature would. Beyond that range, treat all targets as having total concealment. A grimlock is susceptible to sound- and scent-based attacks, however, and is affected normally by loud noises, sonic spells (such as silence 15' radius) and overpowering odors. Negating a grimlock’s sense of smell or hearing reduces its ability to fight. If both of these senses are negated, a grimlock is effectively blinded. It is immune to gaze attacks, visual effects, illusions, and other attacks that rely on sight.