This seed can Naneinf!

It's all about getting the right setup into Ante 3: buy Crystal Ball in Ante 1 so Ante 2's voucher can be Omen Globe, then the fun begins. Brainstorm, Baron, Blueprint, and (after a cheeky Hieroglyph) Perkeo! Use Business Card for economy to fuel all the necessary rerolling and get a "change suit" tarot card in the consumable area to copy. Then find a Seance in Ante 4, hit the straight flush in Ante 5 to find a Cryptid, and you're off to the races. There's time to find a Mime later on, as well as some good copies with Invisible Jokers and a few hits of Ectoplasm. Some later Antes give a Deja Vu for red seal. It never lined up perfectly for me to have red seal + steel, but with Plasma Deck you don't need too many Cryptids anyway.

The only major hurdle after that is Ante 12 being The Plant. There's not much in the way of deck fixing, so you can find a non-King to Cryptid into a Flush Five easy enough, but the scoring is a challenge. Gotta get a good hit with the first Invisible Joker for a 3rd copy joker and find and pump up Steel Joker to copy for enough score without the Baron.

Ante 1 boss is The Club so clubs are safe to copy, and there are a few opportunities to copy the king of spades in the early antes due to Cryptid showing up in Arcana Packs. Hearts get debuffed at Ante 15, so stay away from those.

I managed to naneinf in Ante 17 Small Blind, but I had a couple misplays nearing The Plant in Ante 12 that made me sell some Negative Cryptids. You could also take this to Ante 39 most likely.