How do you get Philosopher's Stone with the console?

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

Court artifact · Pedestal Item

Philosopher's Stone

Rarity rolled when it is madeThe Royal Court

Philosopher's Stone is a pedestal item artifact in Crusader Kings III: Health +0.1. It needs The Royal Court. Patch 1.20.0.3, from game/common/scripted_effects/01_ep1_court_artifact_creation_effects.txt.

Quick answers (2)

What does Philosopher's Stone do in CK3?: Health +0.1 (patch 1.20.0.3).
How do you get Philosopher's Stone with the console?: effect create_artifact_philosophers_stone_effect = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).

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Effects

Health+0.1

Also gets random bonuses when it is made, from add_scaled_artifact_modifier_scholarship_effect, add_scaled_artifact_modifier_prestige_effect — the bigger ones at higher rarity.

How it is made

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

effect create_artifact_philosophers_stone_effect = { OWNER = root }

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

Source: game/common/scripted_effects/01_ep1_court_artifact_creation_effects.txt, common/modifiers (artifact_health_gain_1_modifier) and the English localisation, Crusader Kings III 1.20.0.3.