The deck also can generate a ton of value through draw engines such as Anowon, Bident of Thassa, Military Intelligence, Reconaissance Mission, etc, that draw cards when you hit with your evasive rogues
Of the three full Tyranid Genestealer cards, I think they do a nice job of capturing that element
Theyre basically a mini-game that all players participate in, where youre supposed to catch that character by satisfying their requirement by the end of your turn
This is incredibly jank programming, but it is not the bottleneck in the card generation (the GPT-2 text generation is) and streamlining the code workflow would not have a noticable effect on performance (image generation currently takes about 3s while card generation takes 10s-30s)
Now multiply that by the number of different sheet layouts, common, uncommon, rare, theme decks, etc