M-80 explosive kit

M-80 detonates 6 seconds after ignition into
a small explosion, which can be heard 100 ft
away. Each creature within 10 ft must make a
Constitution saving throw. On a failed save, the
creature takes 1d6 thunder damage.
At Higher Levels the M-80 distributed to combat
engineers is of higher potency. The M80's
damage increases by 1d6 when you reach 5th
level (2d6), 11th level (3d6), and 17th level (4d6).