Game Rules Guide

Units trained in a Great Barracks or Great Stable cost 3 times the wood, clay, iron and wheat they cost in the Barracks or Stable. A training-cost Artifact still applies on top, and each resource is rounded up. The training time is the same as in a Barracks or Stable of the same level, and the great building has its own queue, so it lets you train more units at the same time.