The Grey Hound is a dark barracks troop that is unlocked at town hall lvl 9 the Grey Hound is basically a Giant Wolf that travels underground by digging tunnels the only thing that can hurt it is spring traps bombs (all types) teslas and clan castle troops that jump inside its tunnel the skeleton traps can also be set to ground. Because the defences can hurt the wolf while it in its tunnel it has very weak health but high damage. It has purple eyes and a gray coat of hair with a metal helmet and every time it is upgraded the helmet changes colors lvl 1 is silver lvl 2 is gold and lvl 3 black with red spikes (upgrade 3 is unlocked at th lvl 10). The Grey Hound also can only dig one tunnel to it destination. If you liked this idea please say so and supercell please take this in to account and keep making the game better!!!!