Artifact Enhance

Level Upgrade	Rate
Artifact Upgrade +1	100%
Artifact Upgrade +2	100%
Artifact Upgrade +3	95%
Artifact Upgrade +4	95%
Artifact Upgrade +5	95%
Artifact Upgrade +6	90%
Artifact Upgrade +7	90%
Artifact Upgrade +8	90%
Artifact Upgrade +9	85%
Artifact Upgrade +10	85%
Artifact Upgrade +11	80%
Artifact Upgrade +12	80%
Artifact Upgrade +13	75%
Artifact Upgrade +14	75%
Artifact Upgrade +15	60%