Hero leveling during the first 2 weeks.

I’m not a pro, of course, but I play on veteran difficulty. So, there were some upgraded fairies sitting on a tree, and I split the gargoyles into three or four stacks of 4 or 6. That way, they didn’t do much damage, and I easily took them out with my hero using arrows or fireballs. Why sacrifice gremlins? ;) Sorry if my answer confused anyone.