Breeding a Grumpyre in My Singing Monsters requires combining a T-Rox and Yawstrich. The breeding process takes 12 hours and requires a Ghazt as the parent monster, which itself is a combination of an Entbrat and a Reebro. Once the breeding process is complete, the Grumpyre will appear in the Nursery and can be moved to a habitat.
The Grumpyre is a valuable monster to have on your island, as it produces a large amount of coins and can be used to breed other rare monsters. It is also a popular monster for decorating islands, as it has a unique and eye-catching appearance.
