How do you get Ōtenta with the console?

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

Personal artifact · Weapon

Ōtenta

Masterwork

Ōtenta is a masterwork weapon artifact in Crusader Kings III: Prowess +2, Prestige +0.2/month, Fellow Vassal Opinion +10, Vassal Opinion +5. Quality 30 and wealth 30; maximum durability 75, and it does not wear out. Made on 1082.1.1 for Yoritada Ononomiya-ryū in Mii. At game start it goes to the holder of Kiso Family (starts from 1178.10.1). Patch 1.20.0.3, from game/common/scripted_effects/01_exp1_historical_artifacts_creation_effect.txt.

Quick answers (2)

What does Ōtenta do in CK3?: Prowess +2, Prestige +0.2/month, Fellow Vassal Opinion +10, Vassal Opinion +5 (patch 1.20.0.3).
How do you get Ōtenta with the console?: effect create_artifact_odenta_sword_effect = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).

The 'Great Tenta' was forged by the famed smith Mitsuyo, known as Tenta, in the reign of Shirakawa Ten'nō.

Effects

History and who has it

Made on 1082.1.1 for Yoritada Ononomiya-ryū in Mii.
At game start: the holder of Kiso Family (starts from 1178.10.1).

How it is made

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

effect create_artifact_odenta_sword_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 (odenta_sword_modifier) and the English localisation, Crusader Kings III 1.20.0.3.