Indeed, the skill is designing a deck to be less sensitive to such randomness, adapting a side deck, reading the opponent's tactics to counter them or exploit t

Indeed, the skill is designing a deck to be less sensitive to such randomness, adapting a side deck, reading the opponent's tactics to counter them or exploit them and responding correctly to the challenges if things go wrong. Essentially, making your own luck. Tree depth in card games is about the same as the deepest card combo times hand size, and for every card you can also hold it or get it burned.