To breed a Reebro in My Singing Monsters, the key method is to breed a Riff monster with a triple-element monster. Common triple-element monsters used in combination with Riff include T-Rox, Congle, Scups, and PomPom on Air Island. For a Rare Reebro on Air Island, the breeding pairs are:
- Riff + T-Rox
- Riff + Congle
- Riff + Scups
- Riff + PomPom
On Ethereal Island, Reebros can be bred by pairing a Reebro with any of these monsters:
- Ghazt
- Grumpyre
- Jeeode
- Humbug
- Rare Reebro
Additionally, to breed an Ethereal Reebro, combinations include Kazilleon + Sox or Pango + T-Rox. The breeding time varies around 1 day 12 hours on Air Island and about 10 hours on Ethereal Island with enhanced breed times shorter by several hours. Thus, the best and most reliable approach is using Riff + T-Rox on Air Island for a shorter breeding time and good chances to get a Reebro. For Rare and Ethereal variants, breeding Reebros with Ethereal monsters as listed will work.
If further details on purchase prices or other breeding tips are needed, those can be provided as well.