+Changes have been made to the building tree; now, for the Tier 4 building, a Barracks is required. That is, Blacksmith -> Swordsmen -> Ballista
*Iris has long had a different special ability - "Improvisation" (similar to Rolf's ability: receives a small amount of gold for victories on the map and negotiates more successfully with neutrals)
starting skills are now Ghostly Luck -> Lucky Charm
*This is in relation to the fact that the humans do not have a special ability for this Tier 4 unit.