Game is very cool, can see a lot of potential out of this. I think you could keep adding to it and make a pretty big game if that interests you. A race I would like to see would be skeletons because everyone loves undead. Maybe chuck humans in there too? It'd be really convenient if I could right click on a square or enemy to move/attack (whichever is appropriate) than have to go through the menu each time. Switching between allied units was difficult too as I wanted to select allies that were yet to move and kept on being prompted to 'swap' them instead. Perhaps only make that option available if it is actually viable, as opposed to trying to swap two guys on other side of the map.
Also the best strategy I found which resulted in a 100% success rate against every other race despite the map was playing orcs and just spamming the 15 gold raiders and getting one of the slavers. Every character seems to take around 2 hits to kill from any other character so it became apparent that if I simply had more bodies than the other guy I could charge him in a clump and clean up pretty easily.