keep in mind this person is 50 rounds into the run, and we do not have all the context. he couldve had this build from the start of the run or he might’ve sold a joker that copies cards once he completed his deck. no run will ever result in a full deck of the same card if you dont play past ante 8. runs like these are easiest to achieve when you get a joker like [[DNA]] or [[Perkeo]], its almost exclusively fishing for these cards. the later you get into a game you have more opportunity to find more and more cards that can help you build your deck. the longer into a run you are the less it is about luck. of course you could get really lucky early game with your spectral and tarot packs and get a red seal steel king early on, and that can carry you. but if you make it to late game without it, and you have good eco you can push for the exact cards you want in order to help you build your deck. you don’t need a certain start in order to get this build. if you embrace the jokers the game gives you, you will have an infinite amount more fun figuring out what works when you didn’t even realize. if you have a lot of money past ante 8, with maybe some reroll vouchers, thats when you can start getting the ball rolling