If NO to black market trading post and NO to extra scroll exchange, how about this: regen bars that have randomly generated fills and randomly generated regen times. They could be set to have a number to be randomly generated in a range (i.e. between 65-95% fill and between 35-55 minutes to regen for example). Currently, regen bars can easily be timed out and planned for, this would add an additional complexity and difficulty, warranting higher scroll drops
its impossible for a computer to generate a random number, they just follow a code algorithm that makes it appear "random" so your argument is invalid
If you put 10,000,000 numbers into a sequence and put it on repeat, it would essentially be random and impossible to keep track of. As for the actual thread topic, I would like if troop regen times and amounts DID have a bit of randomness. It would make wars harder to organise and keep them suspenseful