and Sheep worked by a City provide +1 Food, all Horses provide +1 Gold, and all Deer provide +1 Production. Sumer Leader: Gilgamesh Unique Unit: Phalanx . Replaces Spearman. Techs with Mining, not Bronze Working. Cost 56. Strength 8, not 7. +100% combat bonus VS Mounted Units. Unique Building: Ziggurat .