By upgrading from the Horde, the unit receives +17 hit points, +1 armor, +2 attack strength, +1 attack range, and +1 line of sight. In comparison to the Carabineer it replaces, Horde cavalry requires slightly less time to reload, thus fires faster and deals more damage in the same time.
The Golden Horde is trained and upgraded at the Stable.
Production cost for this unit increases progressively with every Stable unit on the field or currently in production. However, the maximum cost for Golden Horde is capped at 135 Timber / 90 Wealth. Actual production and upgrading costs may differ, depending on researched technologies, connected rare resources, or adopted governments.
The Mongols create mounted units 10% cheaper and 20% faster.
They also receive free Ranged Cavalry whenever they complete a new Stable or Auto Plant: 1 at start, 2 with Military 2 (Mercenaries) researched, 3 with Military 3 (Standing Army) researched. Note, that free units are not given, if this would exceed the Population Limit.