Use the traits of worms.
"Wisely did Ibn Schacabac say, that happy is the tomb where no wizard hath lain, and happy the town at night whose wizards are all ashes. For it is of old rumour that the soul of the devil-bought hastes not from his charnel clay, but fats and instructs the very worm that gnaws; till out of corruption horrid life springs, and the dull scavengers of earth wax crafty to vex it and swell monstrous to plague it. Great holes secretly are digged where earth's pores ought to suffice, and things have learnt to walk that ought to crawl."
― (H.P. Lovecraft, The Festival)
use the abilities of worms. Variation of Animal Imitation and Animal Morphing.
User with this ability either is or can mimic/transform into
worms, a collective term descripting many different distantly-related animals that typically have a long cylindrical tube-like body and no legs. These include annelids ( earthworms), nematodes ( roundworms), platyhelminthes ( flatworms), marine nemertean worms ( bootlace worms), marine Chaetognatha ( arrow worms) and priapulid worms.
The Worm That Walks.
The Worm That Walks (Advanced Dungeons & Dragons/Pathfinder)
Gurmah-Gharus (Anima: Beyond Fantasy)
Sandworm (Beetlejuice: The Animated Series)
Xol, Will of the Thousands (Destiny) is a massive worm god of the Hive Pantheon.
Worm (Dynomutt, Dog Wonder)
Earthworm Jim (Earthworm Jim)
The Lekgolo, (Halo) are an alien race of worm-like creatures that can join together to form a single lifeform known as a Mgalekgolo.
Pain and Panic (Hercules)
Sandworm (Monster Girl Encyclopedia)
Tatzlwurm (My Little Pony: Friendship is Magic)
Midgardsorm (The Ocean Hunter)
Warren Stone (Rise of the Teenage Mutant Ninja Turtles) is a mutant worm who was a news anchor.
Alaskan Bull Worm (SpongeBob SquarePants)
Kraathatrogon (Teenage Mutant Ninja Turtles 2012 TV series)
The Flukeman (The X-Files)
SCP-906 - Scouring Hive (SCP Foundation)
SCP-4553 - Bob Shepherd (SCP Foundation), Anthropomorphic Mass of Worms and United States Representative of the 3rd Congressional District of Nebraska.