random was the most annoying rule in 8 as well, I remember purposefully removing that rule from everywhere in the world.

your right though the npc's who use the random rule should have an extended deck so there is more variance to them, not just on the player themselves.

of course you could farm the high level cards first before playing the random rule matches then increase your deck after getting the cards, but of course unlike 8 you cant dispose of the low level cards once gained to give yourself that advantage.