How do you get Sledovik with the console?

effect create_artifact_sledovik_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 Sledovik?

They get Court grandeur baseline +3 instead.

Court artifact · Pedestal Item

Sledovik

IllustriousUniqueHoly relic

Sledovik is an illustrious pedestal item artifact in Crusader Kings III: Court grandeur baseline +3, Piety +0.25/month, Building Construction Cost in Taiga -5%, Holding Construction Cost in Taiga -10%, Advantage in Provinces affected by Winter +2. Quality 100 and wealth 100; maximum durability 150, 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 Sledovik do in CK3?: Court grandeur baseline +3, Piety +0.25/month, Building Construction Cost in Taiga -5%, Holding Construction Cost in Taiga -10%, Advantage in Provinces affected by Winter +2 (patch 1.20.0.3).
How do you get Sledovik with the console?: effect create_artifact_sledovik_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 Sledovik?: They get Court grandeur baseline +3 instead.

This big boulder is covered in foot traces that intrude into the rock itself. For many years it has acted as an altar, and the footprints are believed to be left by local holy men.

Effects

Court grandeur baseline+3
Piety+0.25/month
Building Construction Cost in Taiga-5%
Holding Construction Cost in Taiga-10%
Advantage in Provinces affected by Winter+2

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_sledovik_effect. In the console (how to open it), this gives it to the character you play:

effect create_artifact_sledovik_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 (sledovik_modifier), common/artifacts/templates (relic_finno_ugric_template) and the English localisation, Crusader Kings III 1.20.0.3.