Power to 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 polychaete worms (bristle worms), marine nemertean worms (bootlace worms), marine Chaetognatha (arrow worms) and priapulid worms.
The Flukeman (The X-Files)
Earthworm Jim (Earthworm Jim)
Kraathatrogon (Teenage Mutant Ninja Turtles; 2012 TV series)
Tatzlwurm (My Little Pony: Friendship Is Magic)
The Worm That Walks (Advanced Dungeon&Dragons/Pathfinder)
Sandworm (Beetlejuice: the Animated Series)
Sandworm (Monster Girl Encyclopedia)
Alaskan Bullworm (Spongebob Squarepants)