Insane work done by the translators in translating the carvings to English based on what was written in the comments.
Even after figuring out the law, the mind games are at another level as they figure it out. It seems that the suits chosen could be sort of random based on what the referees chose, so there is still an element of luck.
On a storytelling perspective, if we expect to see a 4th or 5th hand, then Lalo would probably win the next round or calamity things happen. Let's see what happens.