Corpse Worm (5e Creature)
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Tiny beast, unaligned
Amphibious. The corpse worm can breathe air and water.
Blood Vision. The corpse worm can see through flesh and blood as if lightly obscured.
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 2 (1d4) piercing damage
Black Tentacle. The corpse worm magically conjures a single black tentacle in an unoccupied space within 90 feet of it. When a creature enters within 5 feet of this tentacle for the first time on a turn or starts its turn there, it must succeed on a DC 10 Dexterity saving throw or take 1 bludgeoning damage and be restrained by the tentacle until the end of its next turn. The tentacle disappears after 1 minute, or after attacking a creature.
A necrotic invertebrate that feeds off blood and has a preference for fresh corpses. These creatures normally reside within planes where rivers of blood flow freely, such as Baator, and use these as their primary home when corpses aren’t available. On other planes, swarms of corpse worms spontaneously form in the bodies of massive creatures, and when they run out of room they begin to seek out new bodies to feed off of en masse. Alone, however, they are utilized by alchemists and necromancers in their pursuit of understanding the ways of death.