You have to grow regular seed from Lucky13. That's just about all they sell.
There was an old school history to a lot of the genetics but they are moving towards newer poly crosses and the old school is disappearing. The old school version tended to be big plants. I'm in the process of growing out some of the newer strains now. I've got enough old school seed in the fridge to last me a long time.
This season I'm growing some UBC Chemo/ Romulan which never got topped. They are becoming big plants already. 2 seeds planted. 2 seeds growing. This was a special release which are no longer available. Translation: I expect there are problems in some situations. So far they are growing skunky, wide and big for me. I'm looking forward to much later in the season

. These plants were never topped. The plant on the right is very skunky.
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The back story for Lucky13 is the Professor suffered from Crones and grew to feel better. What I care about is I've always gotten good plants when I grow them.
One lady I used to grow for was going through cancer treatments. The Pineapple Express from Lucky13 was her go to for nausea and appetite.
The 2 plants below and on the right are something Lucky13 calls Mangoes from Space. Again, a one time shot. The strain is interesting to me because Purple Satellite (Ace) is part of the mix. 2 seeds popped, 2 plants. Hopefully she's that's are short season sativas. The plant on the far left is a Nepal from Real Seed Co.
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A couple years ago I grew Green Dragon (below).
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I expect some of the old school strains won't be available soon. Many strains are "low stock" and if you try to buy them they are not available. Whether you like the old or not it is disappearing from Lucky13. Hopefully the PBH hangs around. Growers like it. The Romulan and Granddaddy Purple are other strains that people like.