
When attacked, grants 30% damage reduction. For each attack suffered, decreases this effect by 3%, down to 15%. This Artifact's skill effect can only apply to one Hero within a team.
| Enhance | +0 | +1 | +5 | +10 |
|---|---|---|---|---|
| Grants …% damage reduction | 15% | 17% | 23% | 30% |
| Decreases this effect by …% | 1.5% | 1.7% | 2.3% | 3% |
| Down to …% | 7.5% | 8.5% | 11.5% | 15% |

The heroes that carry Proof of Valor most, and how they do with it.
When an enemy shows one of these heroes, this is how often I expect Proof of Valor before their build is revealed.
Proof of Valor is a 5-star artifact that any class can equip. Its skill, Proof of Valor, at +10: When attacked, grants 30% damage reduction. For each attack suffered, decreases this effect by 3%, down to 15%. This Artifact's skill effect can only apply to one Hero within a team.
In RTA this week it was run 99,096 times by 111 different heroes and won 48.6% of those games. Boss Arunka carries 48% of them at a 46.7% win rate.
"Though courage and daring may not be visible to mortal eyes, this insignia will act as proof of yours. From now on, everyone you meet shall know of your valor."