Thank you for your warm feedback!! We will absolutely work on the card placement in the future, it will be one of our first fixes :)
Yes! It is absolutely possible to line up the goblin with the other mobs, the easier way i found of doing this is putting him behind everyone because he goes a little bit faster, and then they go boom B) Also lava and traps make him explode immediatly, so that's another strat!
Thank you again and i'm happy you ad a good time playing! :)