Artifacts can be further upgraded to make them even more powerful! There are 15 upgrade levels in total.

• With every level, the stats of the main perk increase.

• Every 3 levels, the Artifact unlocks a new extra perk (but no more than 4). After unlocking all perks, the stats of existing ones will improve at random instead.

• Every 3 levels, the Artifact gets a new Constellation Sign element (but no more than 4).

Remember: the higher the level of the Artifact, the higher the chance of failure when attempting an upgrade. Fortunately, if you fail the Artifact does not disappear, and you can try to upgrade it again!