Check the current COS event or update notes for the Storm Artifacts drop source
Complete the specific Storm-related quests or challenges that reward them
Defeat the required Storm bosses, elites, or event enemies
Open Storm event chests, crates, or reward caches
Farm the Storm zone, dungeon, or raid where the artifacts can drop
Trade with other players if the game allows artifact trading
Buy them from the event shop, vendor, or seasonal store if available
Claim them from battle pass, login rewards, or milestone rewards if included
Craft them from materials if the game has an artifact crafting system
Repeat the activity on higher difficulty for better drop chances