Plasma Deck
Seed: MATEO6D7
This is my brother's username online on most platforms, I put in his username as a joke and stumbled upon an good endless mode seed.
(Hints: Use riff-raff after first round, use the justice card in ante 4 to clear the wall, do not buy tarot merchant before endless mode)
Notes about the seed: Perkeo, Telescope, Mercury or Pluto, and Invisible Joker in Ante 2, Mime in Ante 3, Photochad in Ante 4, Observatory in Ante 5, Triboulet in Antes 6-8, Baron and Brainstorm in Antes 13-15, Omen Globe, two Ectoplasms, a red seal king, and Blueprint in antes 20-26, Antimatter in ante 27
Flint and psychic before endless mode, plant in ante 9
There could be more, like the burgular in ante 1 that I couldn't get to observatory with, feel free to try alternate routes
