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...

Used by Enlighted Genetics for several breeding projects.
For the chemdog91 bx4 I used a garlic og male on to hit the chem 91 originally. Then found a chem dom male from that and hit the original chem again and so on twice more through the lineage to make a stable bx chemdog91 male.