darkSpyro

Any tips?

They dont last very long so first thing you do is scan all your islands when your switch on the game.

I used to not get much until I cleared a big chunk of my islands. You have to have plenty of space for sheep/trolls/traptanium/etc. to spawn. Some have also said that they've had better luck by force closing the app and reopening it every once in a while.

It's also pretty random. I'll go multiple days in a row without seeing any, and then have a day where there are 2 waiting every time I open the app. As long as you have plenty of open space for them, the only other real tip is be patient (assuming you are scanning first thing, as Df pointed out)

I cleared a big chunk of my islands and still get very, very few. Fortunately, most of the villains aren't really worth trapping so it doesn't matter a ton.