Hero artifacts are an essential part of upgrading. There are three types of artifacts.
Each hero has a unique Artifact Weapon. When a hero uses their first skill, Artifact Weapon grants a bonus to the whole team for nine seconds.
Note
Celeste is the exception. Her Artifact Weapon works only for 4.5 seconds.
Artifact Weapon bonus has an activation chance depending on its evolution level:
- 1st star — 30% activation chance.
- 2nd star — 60% activation chance.
- 3rd star and more — 100% activation chance.
You can see the bonus timer and its icon in the upper left-corner of the game screen. Hover your mouse cursor over the icon to see the bonus' name and stats.
Artifact Book grants a bonus to two secondary stats. There are six types of books:
- Warrior's Code boosts critical hit chance and physical attack.
- Manuscript of the Void boosts magic penetration and magic attack.
- Tome of Arcane Knowledge boosts magic attack and health.
- Defender's Covenant boosts armor and magic defense.
- Alchemist's Folio boosts armor penetration and physical attack.
- Book of Illusions boosts dodge and health.
Artifact Ring grants a bonus to a hero's primary stat: strength, agility, or intelligence. There are three types of rings:
- Ring of Strength.
- Ring of Agility.
- Ring of Intelligence.
The maximum artifact level is 130. To upgrade an artifact, you need:
- Artifact Essence for Artifact Weapons.
- Artifact Scrolls for Artifact Books.
- Artifact Metal for Artifact Rings.
Each of these resources falls into five types depending on its level:
| Level | Color | Artifact Weapon | Artifact Book | Artifact Ring |
| 0-25 | Gray |
Artifact Essence |
Artifact Scroll |
Artifact Metal |
| 26-50 | Green |
Uncommon Artifact Essence |
Uncommon Artifact Scroll |
Uncommon Artifact Metal |
| 51-70 | Blue |
Rare Artifact Essence |
Rare Artifact Scroll |
Rare Artifact Metal |
| 71-85 | Purple |
Superior Artifact Essence |
Superior Artifact Scroll |
Superior Artifact Metal |
| 86-100 | Orange |
Flawless Artifact Essence |
Flawless Artifact Scroll |
Flawless Artifact Metal |
| 101-130 | Red |
Absolute Artifact Essence |
Absolute Artifact Scroll |
Absolute Artifact Metal |
The maximum artifact evolution level is six. To level it up, you need artifact fragments and Chaos Cores. You can find them in expeditions and Artifact Chests. Besides, artifact fragments are available in Artifact Merchant's Shop on Airship and Chaos Cores — in Elemental Tournament Shop.