Crusader.kings.ii.holy.fury.update.v3.1.0-codex...

Tribal Pagan rulers can now seek a sponsor from an organized faith (like Christianity or Islam) to convert their entire realm at once, bypassing the slower province-by-province method. [TOOL] CK2 Holy Fury Map Generator - Paradox Forum

The Pope was made less likely to grant excommunication requests for landless characters, and the AI for Byzantine Electors was improved to prioritize candidates with high Martial or Intrigue. Crusader.Kings.II.Holy.Fury.Update.v3.1.0-CODEX...

Most features can be tested or managed via the Console Commands (typically opened with the ` or ~ key). Tribal Pagan rulers can now seek a sponsor

The v3.1.0 patch brought critical balancing to prevent certain mechanics from becoming overpowered: Crusader.Kings.II.Holy.Fury.Update.v3.1.0-CODEX...