About needing weak enemies around the place, I had this problem too because I tend to clear everything out methodically. I need easy fights to use Sacrifice on Peasants to replenish my expensive units. Then I realised that I habitually leave the neutral Griffins on Griffin Island in Arlania alive. But you can turn them hostile by stealing their egg from beneath them. That's a pretty low thing to do, but if need an easy fight...
