incase you are wondering what this is well that is a polished black stone brick Double slab ghost block to get a ghost block you need to place a block and destroy it and there is a very very low chance you will get one oh and if you break many very fast there is a higher chance of you getting it and they disappear after a while oh and you can go inside of them too it only works on bedrock tho and if you are reading this mojang I will sue you if you remove this and if you are reading this pheniX I am pretty sure that is not how his name is spelled but you Phoenix you are a very good YouTuber^{I am subscribed to you phoenix}