OpenPassagewaysBalatro should just be renamed to Flush, every single time I win it’s because I use the “discard until you have a flush” strategy, and augment that with Jupiter, wild cards, steel cards, and jokers that give bonuses for flushes or single suits.
I’m a huge fan of flush because of the versatility in builds, but they really stop being viable at blue stake. After that it’s gotta be pairs or less. Flushes stop being viable