Purple Worm
Source: Monster Manual (2024) p. 250. Available in the SRD and the Free Rules (2024)

Purple Worm
What Gnaws the Roots of the World
- Habitat. Desert, Underdark
- Treasure. None
Titanic purple worms burrow through the earth and sand. Ever ravenous, they devour smaller creatures and ravage entire communities in their aimless burrowing.
A quote from Morrikan d'Kundarak
Purple worms alone are bad enough, but the blasted monsters have a knack for unearthing things that are even worse!