Thrumble/DoF

Description
Thrumble is a purple-y monster that appears in My Singing Monsters: Dawn Of Fire. It has two horns and flippers like those of the Phangler but its flippers are purple. The Thrumble also has a big mouth and a long neck. When it is idle, it sways its neck back and fourth. As an adult, it has claws instead of flippers.

Song
It sings "hum, ho hum, ho hum"