Convert the Protestant/Reformed centers of reformation as soon as they appear
Use missionaries and missionary strength bonuses to convert Lutheran provinces
Increase religious unity through conversions and tolerance management
Enact religious decisions or reforms that reduce heretic spread if available
Use the Religious idea group for stronger conversion power and missionary tools
Use the Counter-Reformation if your religion allows it
Keep stability high to reduce unrest and religious spread
Suppress heretic provinces with harsh treatment or unrest reduction if needed
Control or destroy countries that are actively spreading Lutheranism
Use peace deals to force religion on neighboring states
Maintain strong papal or church influence if your religion has access to it
Build forts and keep armies nearby to prevent rebel support in converted regions
Prioritize converting high-development and high-trade-value provinces first
Remove local autonomy where possible to speed up religious control
Use state edicts or province modifiers that boost missionary work
Keep relations with religious allies to avoid conversion pressure from enemies