Dogs are a unit that are not seeing a ton of play right now. They have some issue with building enough of them to compete with other more expensive options and being a bit glass vs cheaper options. I'd like to suggest the option to build two dogs at once (ala starcraft zerglings) for a price tag of say 450g. This suggestion is not meant to replace the normal build of 200g per dog, but provide a way to get more dogs on the map at extra cost. Im not sure what the full extent of balance ramifications of such a change are.