This seems like obvious bug…
Faced this allready few times with following odds:
*15 cards in enemy deck, 5 bombs, enemy plays Dark Passage - do not draw even single bomb.
*18 cards in enemy deck, 4 bombs, enemy plays Dark Passage - do not draw even single bomb.
*22 cards in enemy deck, 4 bombs, enemy plays Dark Passage - do not draw even single bomb.
I know it’s all RNG but those odds clearly show there is something not right…
Any other observations?