Ok I remember Suros now, not sure about red death. But there are 6 armor pieces for each class (18 total), and 14 weapons that can be sold. I wonder if someone could run the chances of RNG with 14 numbers 12 times, and another one of 6 numbers 12 times (do that 3 times for each class) and see what are the chances of weapons repeating. I know there's plenty of websites to test this out.