1. Place a Reebro and a Schmoochle in the Breeding Structure.
2. Wait for the breeding process to complete. This can take up to 24 hours.
3. Once the breeding process is complete, you will have a chance of obtaining a Ghast egg.
4. Incubate the Ghast egg in the Nursery. This can take up to 24 hours.
5. Once the Ghast egg has hatched, you will have a new Ghast in your collection.