How do you get Ancient Kantele with the console?

effect create_artifact_kantele_effect = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).

What if the owner can't benefit from Ancient Kantele?

They get Court grandeur baseline +3 instead.

Court artifact · Pedestal Item

Ancient Kantele

FamedUniqueHoly relic

Ancient Kantele is a famed pedestal item artifact in Crusader Kings III: Court grandeur baseline +3, Piety +0.25/month, Personal scheme success chance +10%, Embarkation Cost -20%, Development Growth +20%, Fertility +20%. Quality 70 and wealth 70; maximum durability 100, and it does not wear out. Patch 1.20.0.3, from game/common/scripted_effects/01_exp1_historical_artifacts_creation_effect.txt.

Quick answers (3)

What does Ancient Kantele do in CK3?: Court grandeur baseline +3, Piety +0.25/month, Personal scheme success chance +10%, Embarkation Cost -20%, Development Growth +20%, Fertility +20% (patch 1.20.0.3).
How do you get Ancient Kantele with the console?: effect create_artifact_kantele_effect = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).
What if the owner can't benefit from Ancient Kantele?: They get Court grandeur baseline +3 instead.

This wooden string instrument has been passed down through many generations. Rumors claim it may even date to the days of Väinämöinen himself.

Effects

For an owner who can't benefit from it

The template gives these instead of the effects above when its “can benefit” check fails:

Court grandeur baseline+3

Who can benefit (can_benefit) (1 line of game script)

has_religion = religion:finno_ugric_religion

As written in game/common/artifacts/templates (relic_finno_ugric_template).

Counts as a holy relic for (is_holy_relic) (6 lines of game script)

OR = {
	religion = religion:finno_ugric_religion
	main_rite = {
		rite_has_parameter = unreformed_syncretic_actor
	}
}

As written in game/common/artifacts/templates (relic_finno_ugric_template).

History and who has it

Made before recorded history.

How it is made

The game creates it with the scripted effect create_artifact_kantele_effect. In the console (how to open it), this gives it to the character you play:

effect create_artifact_kantele_effect = { OWNER = root }

Built from the effect's file; not run in the game by us.

Source: game/common/scripted_effects/01_exp1_historical_artifacts_creation_effect.txt, common/modifiers (kantele_modifier), common/artifacts/templates (relic_finno_ugric_template) and the English localisation, Crusader Kings III 1.20.0.3.