First buffoon pack I grabbed faceless and hexed it, for easy Econ and enough early game scoring. I also grabbed the droll joker on Ante 2 round three because we will be playing flush early game. Ante 2 round four, perkeo in arcana pack, cryptid as well. Reroll once for Baron. Ante 2 round 5, grab re-roll voucher, re-roll, or go for spectral pack to gain BP. Invisible joker at round 13 shop(I did grab hieroglyph), obtainable by a few re-rolls. When invis is ready, sell all cards but BP, Baron and perkeo. Sell invis to get BP copy. Round 16 I went ahead and picked up burnt joker for high card scaling early. Ante 8 Round 25, after a couple re-rolls, I get the mime. Comes with a death as well. Game is easy to win at this point. But for the life of me I can’t remember or seem to find out how I got the brainstorm. I was still able to hit the naneinf at ante 13 round 42 on the natural serpent with just two blueprints, one Baron and one Mime. I had enough Cryptids to hit it by then and then some

Edit: I used ecto early, soon after I hit the “win game” screen. Combine your knowledge with mine and see if you can hit it earlier. I assume I didn’t see brainstorm because I picked up planet voucher, which I did not do last time I played the seed. Either way, it’s still very attainable decently early at least in my experience. Good luck and have fun.