- -2 National Unrest
- +10% Morale of Armies
- Religion reforms are permanent (unless conversion to another religion).
- Cannot westernize until religion is reformed.
- Doom Mechanic: If Doom reaches 100, leader and heir are sacrificed and replaced with a 0/0/0 leader; stability is massively reduced, negative events will follow.
- +2 Local Missionary Strength (Nahuatl provinces are easier to convert).
- Open up Sumptuary Restrictions: -0.05 Monthly War Exhaustion, -1.2 Yearly Doom Modifier
- Extend Pochteca Obligations: +1 Diplomatic Relations, -1.2 Yearly Doom Modifier
- Warrior Ranks: +5% Discipline, -1.2 Yearly Doom Modifier
- Tribal Expansion: +1 Colonists, Automatically Discover Adjacent Provinces When a Colony is Built, -1.2 Yearly Doom Modifier
- Legal Reform: -20% Stability Cost Modifier, -1.2 Yearly Doom Modifier
- Own at least 5 vassals.
- At Peace
- Rebels control no provinces.
- Stability is at least 1.
- Doom is less than 50.
Reforming the Nahuatl FaithEdit
Each reform requires that the Nahuatl nation has at least 5 vassals, at least 1 Stability, and less than 50 Doom in order to pass a reform. Passing a reform will cost 1 Stability, will release all held vassals, and will add an additional 25 Doom. Reduce your doom through events and sacrificing the monarchs of your vassals (the better the monarch that is sacrificed, the more Doom you lose). Repeat this strategy until all of the reforms are passed. It should be noted that a Nahuatl country gains more Doom if they control more provinces, so try to avoid having a large empire until you have more reforms passed since each reform gives a -1.2 Yearly Doom modifier (with a stacked total of -6.0 Yearly Doom if every reform is passed, which then allows for greater expansion and colonization).
Once all reforms have been passed, the Nahuatl country must wait for an old world colonizer to colonize directly next to their country's border before the religion can be reformed. Once this is true, the country can finally reform their religion (same applies for Mayan and Inti countries); thus embracing all of the colonizer's institutions and technology, as well as no longer having to worry about the Doom mechanic since it becomes disabled once the Nahuatl religion is reformed. As previously stated in the article, the reform bonuses are permanent unless the Nahuatl country decides to convert to another religion.