Actually, Guerrilla warfare worked
very well for me
I remember walking around swamp town, and when I'd see someone coming towards me on the map, I'd hide under a bush and scare the hell out of them...
Oh, and this one time, this arrogant Graalian was starting to tick me off via PMs, so I decided that he should die. I spotted him in Fuitad's, so I brought a bush by the stairs and hid. And soon enough, he comes hobbling down towards me. The attack only got out a heart or two, but it was worth it