Its not a breeder or seedbank, clone only strains are only available as clones. Mostly they are special selected phenotypes of a commercial strain, or old classics who was keeped by someone somewhere...

Clone only strain from the Emerald Triangle.Probably DJ Short's Blue Velvet x OG KushThe mythical Royal Kush clone from the Emerald Triangle really made a splash on the scene in 2008-2010. It's an incredibly potent combination of smells and flavors that range from the grape floral notes of the classic Humboldt purples with that intoxicating range of kushy dankness lingering in the background.