(( shouldn't I have 160 minions because I got 10 extra last turn?))
((No, there is a cap of 150. The 10 minions every player gains every turn is used to help replenish the minion pool to full strength. A player can spend money hiring more minions than their cap limit, but the loss of such minions will not be covered by the replenishment.
I should also point out that once one goes into the negatives, cash wise, they will be unable to automatically replenish.))