Lightning Stick

Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage plus 3 (1d6) lightning damage.

Throttle

Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d4 + 2) bludgeoning damage and the target is grappled (escape DC 12) and can't breathe. Until this grapple ends the grimlock can't use any attack other than throttle and only against the grappled target and it makes this attack with advantage.

Sling

Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit: 4 (1d4 + 2) bludgeoning damage.

Silenced Blunderbuss

Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit: 11 (2d8 + 2) piercing damage. The blunderbuss fires with a cloud of smoke and a quiet pop that can be heard from 30 feet away. It requires an action to reload the blunderbuss.

Smoke Bomb (3/Day)

The grimlock throws a vial at a point up to 20 feet away. The area within 30 feet of that point is heavily obscured for 1 minute or until cleared by a strong wind.