Heroes kill blights. When there are prisons and mines to be tried, how do I know which one to try first?

Later, I decided first. For example, when you go home and decide that you are holding Thunder, you will be transferred to this place if you have nothing to do, and he will give it to you this round. Then when he finished, he went to your round to set the thunder first, so when divining, in addition to the cards of spades 2 to 9, he put the first card of hearts.