is_eligible_heresy_epicenter_ruler_trigger

The comment above it in the file

--- Epicenter ruler eligibility (character scope) ---
A duke+ same-faith landed AI ruler.
Capital-in-region check is applied separately by the picker (with title_province wrapping).

What it checks

• the game's own tooltip text · ◦ our reading of the script line · code the script where neither exists

“They” is whatever it runs on (the scope it is called in). The scripted triggers and effects it calls link to their own pages; $PARAMETERS$ stay as written: each call fills them in.

is_eligible_heresy_epicenter_ruler_trigger = {
	is_landed = yes
	is_ai = yes
	highest_held_title_tier >= tier_duchy
	NOR = {
		this = faith.religious_head
		has_trait = heresiarch
		has_trait = herald
		recently_converted_faith_trigger = yes
	}
}