Grimlock Equipment

The highly advanced grimlocks have their own unique inventions, which leverage both their incredible hearing and other creatures' dependency on sight.

Air Ink. An odorless, pitch-black gas that blocks light, air ink is usually deployed in grenade form. As an action, a creature can throw an air ink grenade up to 30 feet at a point it can see. When it lands, the grenade detonates, filling a 10-foot-radius area with inky darkness.
Two varieties of air ink exist: a "safe" version that merely blocks light and a "dangerous" version that also interferes with breathing. A creature inside an area of dangerous air ink must hold its breath or it begins to suffocate. In either case, the air ink lasts for 10 minutes. While the ink remains, the area it fills is heavily obscured . Only blindsight can penetrate the ink; even creatures with traits such as Devil's Sight can't see through it.

De-Scenting Powder. Available in either a shaker or a "bomb" that fills a 10-foot square, de-scenting powder rapidly absorbs scents from everything it touches, making creatures to which the powder has been applied impossible to detect or track by scent for up to 1 hour. A shaker contains 10 uses, each enough to cover a Medium or smaller creature.

Portable Telegraph. This boxy device is usually worn on a belt clip. When activated, it emits a high-frequency sound that most humanoids can't hear. Grimlocks use these telegraphs as either echolocation devices or communication tools. When used for echolocation, the range of the grimlock's echolocation or blindsight increases by 10 feet, provided the grimlock doesn't move more than 10 feet on their turn. When used for communication, the telegraph can produce a sequence of long and short beeps, similar to those of traditional telegraphs. When used in this manner, the telegraph can transmit messages up to 500 feet. An experienced operator can use an action to transmit up to six words that only by grimlocks or other creatures with echolocation -based blindsight can hear.

Sonic Tripwire. Made up of two small metal boxes, a sonic tripwire can be used to trigger any trap or alarm that a normal tripwire could. Between the boxes, the device emits a beam of high-frequency sound that grimlocks can hear but most other creatures cannot. The tripwire triggers when the beam is interrupted.