Range golem

I think as time went by there will be more hostile mobs that will trying to kill us on our path while we explore. I would like to suggestion for a range golem that are having limit of ammo to avoid being using as part of mobs farm. And also to bring the fun for those who dislike fighting or some one to fight alone side with them in single player world while they exploring. for example i have idea of a Stone golem a mob that have one arm and it use to throw stone shard at mobs and they have 64 ammo before they self destruction into cobble stone. Anyway which all of that i hope golem that will help us on our explore will be one day be add to support us.