Building artifacts in Call of Dragons is as important as heroes and war pets and a long-term progress that will require a lot of time and resources (and some of them even money). I have here an overview which artifacts are universally strong and always a good idea to upgrade to help you out which ones you should dedicate to.
General Artifact Tier List in Call of Dragons
Please refer to the individual hero builds to see how well they perform with each hero, this is more a overview to help you see what artifacts are generally strong in Call of Dragons and which ones are rather specific.
Also please make sure to check out our frequently updated tier list of the best heroes in Call of Dragons here and the best war pets here.
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Conclusion
I hope this list helps you plan out your artifact priority in Call of Dragons. If you have any questions or think I just change something, please comment below.