The King's Return - AOE III

Oyo cavalry are powerful units but with their own "limitations". You cannot raise high number cavalry locally & you have to depend on imported horse.
In the game, the hand cavalry unit is divided into 4 sub-armies. Basically they are the same unit except for the training process & age availability. Additionally, each army will have a leader called a "Warchief" who will maintain the health of his army.

1. Metropolitan Army (Black Heads): trained as regular units from stable (limit 15 available at age 2).
2. Yorubaland Army (Red Heads) : trained in blocks of 5 units from stable (limit 15 available at age 2).
3. Tributary Army (Spear Bearer) : rather than being trained, these units are shipped to your homecity gather point in blocks of 5 (technically it is an infinite tech researched from stable - though  it won't cost any shipment) - (limit 15 available at age 3).
4. Egbado Corridor Army (Skull Heads): as Tributary Army, units are shipped to your homecity gather point in blocks of 5,  but this army will only cost gold (limit 15 available at age 3).

Oyo kingdom developed a highly sophisticated political structure to govern its territorial domains. In the game, there will be 3 groups that will represent the government of the kingdom : 1) The King (called Alaafin) ; 2) The Ogboni Priesthood ; 3) The Oyo Mesi Warchiefs. Each group will be dependent on the other to maintain its health (historically each group formed a layer of check & balance against the other to prevent absolute tyranny power). The following picture summarize the Oyo play mechanism.

1) Alaafin , The King

 Alaafin is the head of the empire and supreme overlord of the people. Basically, he  is weaker than other heroes having only  50% hp & attack when compared to European explorer. However, each "Oyo Mesi Warchief" will increase Alaafin hp & damage by 33% (see Oyo Mesi below). The Alaafin himself will increase Oyo Priests' (Ogboni) hp & damage by 200%.
The Alaafin has a very unique ability called the "Royal Slave". You can turn any unit of your villagers or infantry units into a "Royal Slave". A royal slave is a villager-type unit (blessed by the king) with 15% higher gather rate. But bear in mind that once you turn a unit into "Royal Slave" they will be subject to slavery by enemy i.e. they can be auto converted by enemy much like herds (historically the royal slaves were called ilari whom they worked as high officials in the government thus enjoying  a very high status & prestige).

2) Oyo Mesi Warchiefs

The Leaders of the hand cavalry army. Warchief is a powerful unit with high attack & medium hp that can be further enhanced by Ogboni priests (each priest will increase warchief hp by 15%). There are 4 Warchiefs each one corresponding to the hand-cavalry sub army mentioned above. Each warchief will enhance his army hitpoints & damage by 20%. Additionally, each wacrhief will enhance the King (Alaafin) attack & damage by 33%.

3) Ogboni Priesthood

The Ogboni Priest

The basic healer & religious authority of the Oyo Civilization. Oyo priest are only limited to 4 units. The Oyo Priest has only 50% hitpoints compared to other civilizations priests. However, the king unit (Alaafin) will enhance their hp & damage by 200%. Additionally, a further shipment can be researched so that the  Alaafin will enhance priests' hp & damage by 300%.
The Ogboni Priests themselves will enhance hitpoints of the Oyo Mesi Warchiefs by 15%. All priests can gather unique resources called faith from the temple.

The Oyo High Priest
The highest religious authority in the kingdom. He is an enhanced version of the Oyo Priest with limit of 1 only. He possesses a special ability called "Parrot's Egg". At anytime time you can force your Alaafin to commit a "Royal Suicide" by offering him a parrot's egg in order to remove him. This ability will temporary sacrifice 50% of your villagers' gather rate but will also enhance hp & damage of all land military by 25%. Additionally, the kill bounty of +100 will be granted to you instead of your enemy. Once the king commits the suicide, a couple of parrots will be released in the sky to celebrate the event!.