Illumination. The Smollusk's slime trail sheds bright light in a 10-foot radius and dim light for an additional 10 feet and persists for 10 days.

Double-Edged Ooze. If the a pint's worth of ooze is lightly doused or consumed by a creature, that creature regains 8d4+8 hit points. For the next 24 hours, the creature is at risk of internal combustion. If the creature abruptly falls prone, suffers fall damage or force damage, it can trigger the Smollusk's Detonation ability.

The Smollusk can generate a pint of ooze every 3 days if fed an equal amount of poisonous plant matter. If no volatile substances are consumed, the ooze looses its magical properties.

Bite. Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit: 2 (1d6 − 1) bludgeoning damage.

Detonation. The Smollusk is coated in a highly reactive slime. When the Smollusk is struck by a weapon or spell, it can use its reaction to erupt with magical energy in a 20-foot-radius sphere centered on the Smollusk. The sphere spreads around corners. Each creature in the area must make a DC 14 Dexterity saving throw. A creature in the blast takes 23 (5d8) force damage on a failed saving throw, or half as much damage on a successful one.