G-13 is a pure Indica strain that is great for pain relief especially if you word construction ECT. It's lineage comes from G-13 haze & G-13 Diesel. In my opinion this is also a great strain from the fact it gives you a nice strong body high. I didn't find myself stuck on the couch either lol. Which is a good thing, but if you are not a heavy stoner I recommend to slowly ease into it. I say this strain is a 7.5/10 in my book. I would highly recommend this strain.