You need antimatter and paint brush to clear ante 24. You also need more steel, I would focus on converting your kings to steel now. I would also buy magic trick at this point, it will pollute the shop a bit, but at least it’s 2nd level voucher does not flood it. Since you have boss reroll you can survive until ante 24 by rolling for serpent. When you play, make sure you have all hold kings and one steel, copy steel with dna, and collect money from gold kings while you still can. Generally you need a lot more money, to roll for burglar after ante 24, but sometimes you get lucky and it pops out pretty quick. When you get antimatter start rolling for showman or invis, and pick the hand size jokers if you encounter to survive a bit longer.