Blue Deck
Got to ante 17 on black stake with Blue deck. Baron shows up early in the run and allows to fix your deck towards it. Also there's a polycrome red seal king in one of the packs a bit after getting baron. Finally there's a DNA to duplicate that king with a hologram to keep up the score in the same shop.
Ended up with 2 blueprints, one of them foil and the other polycrome, an eternal polycrome mime and 2 barons thanks to Showman.