Every artifact in Invincible: Guarding the Globe, read off the game on . Any hero can equip any artifact.
Artifacts you don't own yet show their level 1 (base) values. Artifacts you own show your level, with the next level's value in green where the game shows it. Passive skill numbers are as the game showed them at that level.
Source: the player's own game, Heroes › Collection › Artifacts. Raw capture: data/observations/artifacts.json.