Summary of Artifact Power costs
First 13 points in your primary Artifact Trait tree:
For ONE Artifact Weapon - 6,500 Artifact Power
For TWO Artifact Weapons - 13,000 Artifact Power
For THREE Artifact Weapons - 19,500 Artifact Power
For FOUR Artifact Weapons - 26,000 Artifact Power
All 34 points in your primary Artifact Trait tree:
For ONE Artifact Weapon - 5,216,130 Artifact Power
For TWO Artifact Weapons - 10,432,260 Artifact Power
For THREE Artifact Weapons - 15,648,390 Artifact Power
For FOUR Artifact Weapons - 20,864,520 Artifact Power
Ranks 1-20 of your Bonus Artifact Trait: 60,040,200 Artifact Power
All primary Traits + Maxed Bonus Trait: 65,256,330 Artifact Power