I had a lot of trouble with this one. The starting artifacts felt like they absolutely made the first encounter, like if you happened not to get one with decent multipliers on it then you just couldn't make it. Occasionally the artifacts wouldn't trigger. There's likely also a language barrier issue, like the artifact "Odd Day - gives mult when using even cards (1,3,5)". I couldn't for the life of me figure out what actually triggered this one, it just seemed to go randomly.