Black Dragon’s Spit

Wondrous item, uncommon

Kobolds invented black dragon’s spit to protect their lairs from intruders, and they often use it in combination with traps like pits and snares. Black dragon’s spit appears to be a nondescript piece of black fabric, 10 feet square. When placed on the ground, a DC 16 Wisdom (Perception) check is required to notice it. Whenever a creature of size Small or larger steps on the fabric, it explodes into a 20-foot-radius burst of acid dealing 14 (4d6) points of acid damage (DC 13 Dexterity saving throw for half damage) to all creatures in the area, and leaves a 20 foot radius pool of acid on the ground that persists for 1 minute. Creatures in or entering the pool take 1d6 point of acid, and an additional 1d6 points of damage if they end their turn in the pool.