Or the best way is to make a hero which will be a litle bluer than the normal, deal less damage, take more damage (using trigger), has an expiration, explodes on death,doesnt raise and decay, and have normally the abilities. The thing is that it will appear "bleuish to everyone. So if you dont mind, you can make it look simillar to the normall hero.Also hie hero death message at death, and has not icon.